Synonyms of the word

severe

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

austere

• adj. Grim or severe in manner or appearance.
• adj. Lacking trivial decoration; not extravagant or gaudy.

bad

• adj. Not good; unfavorable; negative.
• adj. Not suitable or fitting.
• adj. Seemingly non-appropriate, in manners, etc.
• adj. Unhealthy.
• adj. Tricky; stressful; unpleasant.
• adj. Evil; wicked.
• adj. Faulty; not functional.
• adj. (of food) Spoiled, rotten, overripe.
• adj. (of breath) Malodorous, foul.
• adj. (informal) Bold and daring.
• adj. (hip-hop slang) good, superlative.
• adj. (of a need or want) Severe, urgent.
• adv. (now colloquial) Badly.
• n. (slang) Error, mistake.
• n. (countable, uncountable, economics) An item (or kind of item) of merchandise with negative value; an unwanted…
• adj. (slang) Fantastic.
• v. (archaic) Alternative past tense of bid. See bade.
• v. (Britain, dialect, transitive) To shell (a walnut).

critical

• adj. Inclined to find fault or criticize; fastidious; captious; censorious; exacting.
• adj. Pertaining to, or indicating, a crisis or turning point.
• adj. Extremely important.
• adj. Relating to criticism or careful analysis, such as literary or film criticism.
• adj. (medicine) Of a patient condition involving unstable vital signs and a prognosis that predicts the condition…
• adj. Likely to go out of control if disturbed, that is, opposite of stable.
• adj. Of the point (in temperature, reagent concentration etc.) where a nuclear or chemical reaction becomes…
• n. A critical value, factor, etc.
• n. In breakdancing, a kind of airflare move in which the dancer hops from one hand to the other.

dangerous

• adj. Full of danger.
• adj. Causing danger; ready to do harm or injury.
• adj. (colloquial, dated) In a condition of danger, as from illness; threatened with death.
• adj. (obsolete) Hard to suit; difficult to please.
• adj. (obsolete) Reserved; not affable.

grave

• n. An excavation in the earth as a place of burial.
• n. Any place of interment; a tomb; a sepulcher.
• n. death, destruction.
• v. (transitive, obsolete) To dig.
• v. (transitive, obsolete) To carve or cut, as letters or figures, on some hard substance; to engrave.
• v. (transitive, obsolete) To carve out or give shape to, by cutting with a chisel; to sculpture.
• v. (transitive, obsolete) To impress deeply (on the mind); to fix indelibly.
• v. (transitive, obsolete) To entomb; to bury.
• v. (transitive, obsolete, nautical) To clean, as a vessel's bottom, of barnacles, grass, etc., and pay it…
• v. (intransitive, obsolete) To write or delineate on hard substances, by means of incised lines; to practice…
• adj. (obsolete) Influential, important; authoritative.
• adj. Characterised by a dignified sense of seriousness; not cheerful, sombre.
• adj. Low in pitch, tone etc.
• adj. Serious, in a negative sense; important, formidable.
• n. A written accent used in French, Italian, and other languages. è is an e with a grave accent.

grievous

• adj. Causing grief, pain or sorrow.
• adj. Serious, grave, dire or dangerous.

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.

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.

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.

life-threatening

• adj. Endangering the continued life of the subject.

nonindulgent

• adj. Not indulgent.

plain

• adj. (now rare, regional) Flat, level.
• adj. Simple.
• adj. Obvious.
• adj. Open.
• adj. Not unusually beautiful; unattractive.
• adv. (colloquial) Simply.
• n. (rare, poetic) A lamentation.
• v. (reflexive, obsolete) To complain.
• v. (transitive, intransitive, now rare, poetic) To lament, bewail.
• n. An expanse of land with relatively low relief.
• n. A battlefield.
• n. (obsolete) A plane.
• v. (obsolete, transitive) To level; to raze; to make plain or even on the surface.
• v. (obsolete, transitive) To make plain or manifest; to explain.

serious

• adj. Without humor or expression of happiness; grave in manner or disposition; earnest; solemn.
• adj. Important; weighty; not insignificant.
• adj. Really intending what is said; in earnest; not jocular or deceiving.

spartan

• adj. Austere, frugal, characterized by self-denial.
• adj. Resolute in the face of danger or adversity.
• adj. Lacking in decoration and luxury.

stark

• adj. (obsolete) Hard, firm; obdurate.
• adj. Severe; violent; fierce (now usually in describing the weather).
• adj. (rare) Strong; vigorous; powerful.
• adj. Stiff, rigid.
• adj. Hard in appearance; barren, desolate.
• adj. Complete, absolute, full.
• adv. starkly; entirely, absolutely.
• v. (obsolete or dialect) To stiffen.

stern

• adj. Having a hardness and severity of nature or manner.
• adj. Grim and forbidding in appearance.
• n. (nautical) The rear part or after end of a ship or vessel.
• n. (figuratively) The post of management or direction.
• n. The hinder part of anything.
• n. The tail of an animal; now used only of the tail of a dog.
• n. A bird, the black tern.

strict

• adj. Strained; drawn close; tight.
• adj. Tense; not relaxed.
• adj. Exact; accurate; precise; rigorously nice.
• adj. Governed or governing by exact rules; observing exact rules; severe; rigorous.
• adj. Rigidly interpreted; exactly limited; confined; restricted.
• adj. (botany) Upright, or straight and narrow; — said of the shape of the plants or their flower clusters.
• adj. Severe in discipline.

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.

terrible

• adj. Dreadful; causing alarm and fear.
• adj. Formidable, powerful.
• adj. Intense; extreme in degree or extent.
• adj. Unpleasant; disagreeable.
• adj. Very bad; lousy.

wicked

• adj. Evil or mischievous by nature.
• adj. (slang) Excellent; awesome; masterful; deeply satisfying.
• adv. (slang, New England, Britain) Very, extremely.
• n. (usually humorous) People who are wicked.
• v. simple past tense and past participle of wick.
• adj. Having a wick.
• adj. (Britain, dialect, chiefly Yorkshire) Infested with maggots.