Synonyms of the word

strong

• adj. Capable of producing great physical force.
• adj. Capable of withstanding great physical force.
• adj. (of water, wind, etc.) Having a lot of power.
• adj. Determined; unyielding.
• adj. Highly stimulating to the senses.
• adj. Having an offensive or intense odor or flavor.
• adj. Having a high concentration of an essential or active ingredient.
• adj. (specifically) Having a high alcoholic content.
• adj. (grammar) Inflecting in a different manner than the one called weak, such as Germanic verbs which change…
• adj. (chemistry) That completely ionizes into anions and cations in a solution.
• adj. (military) Not easily subdued or taken.
• adj. (slang, US) Impressive, good.
• adj. Having a specified number of people or units.
• adj. (of a disease or symptom) severe (very bad or intense).
• adj. (mathematics, logic) Having a wide range of logical consequences; widely applicable. (Often contrasted…
• adj. (of an argument) Convincing.
• adv. In a strong manner.

alcoholic

• n. A person addicted to alcohol.
• n. One who abuses alcohol.
• adj. Of or pertaining to alcohol.
• adj. Having more than a trace amount of alcohol in its contents.
• adj. Of, pertaining to, or affected by alcoholism.

brawny

• adj. Characterized by brawn; muscular, thewy; strong.
• adj. Calloused; hardened.

bullnecked

• adj. Having a thick, muscular neck.

bullocky

• n. (Australia and New Zealand colloquial, now historical) A person (usually a man) who drives a cart pulled…

effective

• adj. Having the power to produce a required effect or effects.
• adj. Producing a decided or decisive effect.
• adj. Efficient, serviceable, or operative, available for useful work.
• adj. Actually in effect.
• adj. (geometry, of a cycle or divisor) Having no negative coefficients.
• n. (military) A soldier fit for duty.

effectual

• adj. Producing the intended result; entirely adequate.

efficacious

• adj. Effective; possessing efficacy.

equipotent

• adj. having equal strength, ability or efficacy.

fertile

• adj. (of land etc) capable of growing abundant crops; productive.
• adj. (biology) capable of reproducing; fecund, fruitful.
• adj. (biology) capable of developing past the egg stage.
• adj. (of an imagination etc) productive or prolific.

firm

• n. (Britain, business) A business partnership; the name under which it trades.
• n. (business, economics) A business enterprise, however organized.
• n. (slang) A criminal gang, especially based around football hooliganism.
• adj. steadfast, secure, hard (in position).
• adj. fixed (in opinion).
• adj. solid, rigid (material state).
• v. (transitive) To make firm or strong; fix securely.
• v. (transitive) To make compact or resistant to pressure; solidify.
• v. (intransitive) To become firm; stabilise.
• v. (intransitive) To improve after decline.
• v. (intransitive, Australia) To shorten (of betting odds).
• v. (transitive, Britain, slang) To select (a higher education institution) as one's preferred choice, so…

forceful

• adj. With assertive force; powerful.

fortified

• v. simple past tense and past participle of fortify.

fresh

• adj. Newly produced or obtained.
• adj. Not cooked, dried, frozen, or spoiled.
• adj. (of plant material) Still green and not dried.
• adj. Refreshing or cool.
• adj. (of water) Without salt; not saline.
• adj. Rested; not tired or fatigued.
• adj. In a raw or untried state; uncultured; unpracticed.
• adj. youthful; florid.
• adv. recently; just recently; most recently.
• n. A rush of water, along a river or onto the land; a flood.
• n. A stream or spring of fresh water.
• n. The mingling of fresh water with salt in rivers or bays, as by means of a flood of fresh water flowing…
• adj. Rude, cheeky, or inappropriate; presumptuous; disrespectful; forward.
• adj. Sexually aggressive or forward; prone to caress too eagerly; overly flirtatious.

hard

• adj. (of material or fluid) Having a severe property; presenting difficulty.
• adj. (personal or social) Having a severe property; presenting difficulty.
• adj. Unquestionable.
• adj. (of a road intersection) Having a comparatively larger or a ninety-degree angle.
• adj. (slang, vulgar, of a male) Sexually aroused.
• adj. (bodybuilding) Having muscles that are tightened as a result of intense, regular exercise.
• adj. (phonetics, not comparable).
• adj. (art) Having a severe property; presenting a barrier to enjoyment.
• adj. (not comparable) In the form of a hard copy.
• adv. (manner) With much force or effort.
• adv. (manner) With difficulty.
• adv. (obsolete) So as to raise difficulties.
• adv. (manner) Compactly.
• adv. (now archaic) Near, close.
• n. (countable, nautical) A firm or paved beach or slope convenient for hauling vessels out of the water.
• n. (uncountable, drugs, colloquial, slang) crack cocaine.

hefty

• adj. Heavy.
• adj. Strong, bulky.
• adj. (of a person) Possessing physical strength and weight; rugged and powerful; powerfully or heavily built.
• adj. Impressive, mighty.

impregnable

• adj. (of a fortress, wall, etc., also used figuratively) Too strong to be penetrated.
• adj. Capable of being impregnated.

industrial-strength

• adj. Having a level of potency, concentration, or durability suitable for industrial tasks, as opposed to merely…

intense

• adj. Strained; tightly drawn.
• adj. Strict, very close or earnest.
• adj. Extreme in degree; excessive.
• adj. Extreme in size or strength.
• adj. Stressful and tiring.
• adj. Very severe.

inviolable

• adj. Not violable; not to be infringed.
• adj. Not susceptible to violence, or of being profaned, corrupted, or dishonoured.
• adj. Incapable of being injured or invaded; indestructible.

invulnerable

• adj. Incapable of being injured; not vulnerable.
• adj. Unanswerable; irrefutable.

ironlike

• adj. Resembling iron or some aspect of it.

irregular

• adj. Nonstandard; not conforming to rules or expectations.
• adj. Of a surface, rough.
• adj. Without symmetry, regularity, or uniformity.
• adj. (geometry, of a polygon) Not regular; having sides that are not equal or angles that are not equal.
• adj. (geometry, of a polyhedron) Whose faces are not all regular polygons (or are not equally inclined to each…
• n. A soldier who is not a member of an official military force and, often, does not follow regular army tactics.
• n. One who does not regularly attend a venue.

knockout

• n. The act of making someone unconscious, or at least unable to come back on their feet within a certain…
• n. The deactivation of anything.
• n. (informal) Something wildly popular, entertaining, or funny.
• n. (informal) A very attractive person, especially a beautiful woman.
• n. A partially punched opening meant for optional later removal.
• n. (genetics) The deactivation of a particular gene.
• n. (genetics) A creature engineered with a particular gene deactivated.
• n. (printing) An event where a foreground color causes a background color not to print.
• n. (sports) A tournament in which a team or player must beat the opponent in order to progress to the next…
• n. (uncountable) A simple game for two or more players, derived from basketball.
• adj. Rendering someone unconscious.
• adj. Amazing; gorgeous; beautiful.
• adj. (genetics) Designating an organism in which a particular gene has been removed or deactivated.
• adj. Causing elimination from a competition.

multipotent

• adj. Having the power to do many different things.
• adj. (biology) Describing a cell that can give rise to a limited number of several different types of cell.

muscular

• adj. Of, relating to, or connected with muscles.
• adj. Brawny, thewy, having strength.
• adj. Having large, well-developed muscles.
• adj. (figuratively) Strong, robust.

noticeable

• adj. Worthy of note; significant.
• adj. Capable of being seen or noticed.

potent

• adj. Possessing strength.
• adj. Being effective, causing body effects.
• adj. Having a sharp or offensive taste.
• adj. (of a male) Able to procreate.
• adj. Very powerful or effective.
• n. (heraldry) A heraldic fur formed by a regular tessellation of blue and white T shapes.
• n. (obsolete) A prince; a potentate.
• n. (obsolete) A staff or crutch.

powerful

• adj. Having, or capable of exerting power, potency or influence.
• adj. (mining) Large; capacious; said of veins of ore.

reinforced

• v. simple past tense and past participle of reinforce.
• adj. having been or containing reinforcement.

robust

• adj. Evincing strength and health; strong.
• adj. Violent; rough; rude.
• adj. Requiring strength or vigor.
• adj. Sensible (of intellect etc.); straightforward, not given to or confused by uncertainty or subtlety.
• adj. (systems engineering) Designed or evolved in such a way as to be resistant to total failure despite partial…
• adj. (software engineering) Resistant or impervious to failure regardless of user input or unexpected conditions.
• adj. (statistics) Not greatly influenced by errors in assumptions about the distribution of sample errors.

rugged

• adj. Broken into sharp or irregular points; uneven; not smooth; rough.
• adj. Nor neat nor regular; irregular, uneven.
• adj. Rough with bristles or hair; shaggy.
• adj. (of a person) Strong, sturdy, well-built.
• adj. (of land) Rocky and bare of plantlife.
• adj. (of temper, character, or people) Harsh; austere; hard; crabbed.
• adj. Stormy; turbulent; tempestuous; rude.
• adj. (of sound, style etc.) Harsh; grating; rough to the ear.
• adj. (of looks, appearance etc.) Sour; surly; frowning; wrinkled.
• adj. (of behaviour) Violent; rude; boisterous.
• adj. (of health, physique etc.) Vigorous; robust; hardy.
• adj. (computing, of a computer) Designed to reliably operate in harsh usage environments and conditions.
• adj. Having a rug or rugs.
• adj. Covered with a rug.
• v. simple past tense and past participle of rug.

secure

• adj. Free from attack or danger; protected.
• adj. Free from the danger of theft; safe.
• adj. Free from the risk of eavesdropping, interception or discovery; secret.
• adj. Free from anxiety or doubt; unafraid.
• adj. Firm and not likely to fail; stable.
• adj. Free from the risk of financial loss; reliable.
• adj. Confident in opinion; not entertaining, or not having reason to entertain, doubt; certain; sure; commonly…
• adj. Overconfident; incautious; careless.
• v. To make safe; to relieve from apprehensions of, or exposure to, danger; to guard; to protect.
• v. To put beyond hazard of losing or of not receiving; to make certain; to assure; frequently with against…
• v. To make fast; to close or confine effectually; to render incapable of getting loose or escaping.
• v. To get possession of; to make oneself secure of; to acquire certainly.

severe

• adj. Very bad or intense.
• adj. Strict or harsh.
• adj. Sober, plain in appearance, austere.

sinewy

• adj. Tough; having strong sinews.
• adj. (figuratively) Having or showing nervous strength.
• adj. (of a person) Possessing physical strength and weight; rugged and powerful.

solid

• adj. An item that can be grabbed, having a texture, and usually firm. Unlike a liquid or a gas.
• adj. Large, massive.
• adj. Lacking holes or hollows; as solid gold, solid chocolate.
• adj. Strong or unyielding.
• adj. (slang) Excellent, of high quality, or reliable.
• adj. Hearty; filling.
• adj. Worthy of credit, trust, or esteem; substantial; not frivolous or fallacious.
• adj. Sound; not weakly.
• adj. (typography) Written as one word, without spaces or hyphens.
• adj. (printing, dated) Not having the lines separated by leads; not open.
• adj. (US, politics, slang) United; without division; unanimous.
• adj. Of a single color throughout.
• adj. (dated) Having all the geometrical dimensions; cubic.
• n. (chemistry) A substance in the fundamental state of matter that retains its size and shape without need…
• n. (geometry) A three-dimensional figure (as opposed to a surface, an area, or a curve).
• n. (informal) A favor.
• n. An article of clothing which is of a single color throughout.
• n. (in the plural) Food which is not liquid-based.
• adv. Solidly.
• adv. (not comparable, typography) Without spaces or hyphens.

sound

• adj. Healthy.
• adj. Complete, solid, or secure.
• adj. (mathematics, logic) Having the property of soundness.
• adj. (Britain, slang) Good; acceptable; decent.
• adj. (of sleep) Quiet and deep. Sound asleep means sleeping peacefully, often deeply.
• adj. Heavy; laid on with force.
• adj. Founded in law; legal; valid; not defective.
• adv. Soundly.
• interj. (Britain, slang) Yes; used to show agreement or understanding, generally without much enthusiasm.
• n. A sensation perceived by the ear caused by the vibration of air or some other medium.
• n. A vibration capable of causing such sensations.
• n. (music) A distinctive style and sonority of a particular musician, orchestra etc.
• n. Noise without meaning; empty noise.
• v. (intransitive) To produce a sound.
• v. (copulative) To convey an impression by one's sound.
• v. (intransitive) To be conveyed in sound; to be spread or published; to convey intelligence by sound.
• v. (intransitive, obsolete) To resound.
• v. (intransitive, law, often with in) To arise or to be recognizable as arising in or from a particular area…
• v. (transitive) To cause to produce a sound.
• v. (transitive, phonetics, of a vowel or consonant) To pronounce.
• n. (geography) A long narrow inlet, or a strait between the mainland and an island; also, a strait connecting…
• n. The air bladder of a fish.
• n. A cuttlefish.
• v. (intransitive) Dive downwards, used of a whale.
• v. To ascertain, or try to ascertain, the thoughts, motives, and purposes of (a person); to examine; to try;…
• v. Test; ascertain the depth of water with a sounding line or other device.
• v. (medicine) To examine with the instrument called a sound or sonde, or by auscultation or percussion.
• n. (medicine) An instrument for probing or dilating; a sonde.
• n. A long, thin probe for sounding body cavities or canals such as the urethra.

stiff

• adj. (of an object) Rigid, hard to bend, inflexible.
• adj. (figuratively, of policies and rules and their application and enforcement) Inflexible; rigid.
• adj. (of a person) Formal in behavior; unrelaxed.
• adj. (colloquial) Harsh, severe.
• adj. (of muscles or parts of the body) Painful as a result of excessive or unaccustomed exercise.
• adj. Potent.
• adj. Dead, deceased.
• adj. (of a penis) Erect.
• adj. (cooking, of whipping cream or egg whites) Beaten until so aerated that they stand up straight on their…
• adj. (mathematics) Of an equation: for which certain numerical solving methods are numerically unstable, unless…
• n. An average person, usually male, of no particular distinction, skill, or education, often a working stiff…
• n. A person who is deceived, as a mark or pigeon in a swindle.
• n. (slang) A cadaver, a dead person.
• n. (US) A person who leaves (especially a restaurant) without paying the bill.
• n. (blackjack) Any hard hand where it is possible to exceed 21 by drawing an additional card.
• v. To fail to pay that which one owes (implicitly or explicitly) to another, especially by departing hastily.
• v. to cheat someone.
• v. to tip ungenerously.

strengthened

• v. simple past tense and past participle of strengthen.

substantial

• adj. Having a substance; actually existing.
• adj. Not seeming or imaginary; not illusive; real; solid; true; veritable.
• adj. Corporeal; material; firm.
• adj. Having good substance; strong; stout; solid; firm.
• adj. possessed of goods or an estate; moderately wealthy; responsible.
• adj. Large in size, quantity, or value; vastas.
• adj. Most important; essential.
• adj. Ample or full.
• adj. Significantly great.
• n. Anything having substance; an essential part.

tough

• adj. Strong and resilient; sturdy.
• adj. (of food) Difficult to cut or chew.
• adj. Rugged or physically hardy.
• adj. Stubborn.
• adj. (of weather etc) Harsh or severe.
• adj. Rowdy or rough.
• adj. (of questions, etc.) Difficult or demanding.
• adj. (material science) Undergoing plastic deformation before breaking.
• interj. (slang) Used to indicate lack of sympathy.
• n. A person who obtains things by force; a thug or bully.
• v. To endure.
• v. To toughen.

toughened

• v. simple past tense and past participle of toughen.

unassailable

• adj. secure against attack; impregnable.
• adj. (by extension) undeniable, incontestable or incontrovertible.

unattackable

• adj. which may not be attacked.

vehement

• adj. Showing strong feelings; passionate; forceful or intense.

virile

• adj. Being manly; having characteristics associated with being male, such as strength; exhibiting masculine…
• adj. (physiology, of a male) Possessing high sexual drive and capacity for sexual intercourse.
• adj. (grammar) Pertaining to a grammatical gender used in plurals of some Slavic languages, corresponding to…

warm

• adj. Having a temperature slightly higher than usual, but still pleasant; mildly hot.
• adj. Caring and friendly, of relations to another person.
• adj. Having a color in the red-orange-yellow part of the visible electromagnetic spectrum.
• adj. Close, often used in the context of a game in which "warm" and "cold" are used to indicate nearness to…
• adj. (figuratively) Communicating a sense of comfort, ease, or pleasantness.
• adj. (archaic) Ardent, zealous.
• adj. (archaic) Being well off as to property, or in good circumstances; rich.
• adj. (archaic) Requiring arduous effort.
• v. (transitive) To make or keep warm.
• v. (intransitive) To become warm, to heat up.
• v. (intransitive) To favour increasingly.
• v. To become ardent or animated.
• v. To make engaged or earnest; to interest; to engage; to excite ardor or zeal in; to enliven.
• n. (colloquial) The act of warming, or the state of being warmed; a heating.

weapons-grade

• adj. (of a radioactive or other substance) Of a purity suitable for the manufacture of weapons.
• adj. (by extension, informal) Extreme.

well-knit

• adj. Firmly constructed and held together.

well-set

• adj. Having a good physical form; strong and symmetrical.
• adj. Firmly established.