Synonyms of the word

knotty

• adj. Full of knots.
• adj. Complicated or tricky; complex; difficult.

baffling

• v. present participle of baffle.
• adj. puzzling and frustrating.
• n. An act of foiling or thwarting.

complex

• adj. Made up of multiple parts; composite; not simple.
• adj. Not simple, easy, or straightforward; complicated.
• adj. (mathematics) Of a number, of the form a + bi, where a and b are real numbers and i is a square root of…
• adj. (geometry) A curve, polygon or other figure that crosses or intersects itself.
• n. A problem.
• n. A collection of buildings with a common purpose, such as a university or military base.
• n. An assemblage of related things; a collection.
• n. A psychological dislike or fear of a particular thing.
• n. An organized cluster of thunderstorms.
• n. (chemistry) A structure consisting of a central atom or molecule weakly connected to surrounding atoms…
• n. (mathematics) A complex number.
• v. (chemistry, intransitive) To form a complex with another substance.

convoluted

• adj. Having numerous overlapping coils or folds.
• adj. Complex, intricate or complicated.

crooked

• v. simple past tense and past participle of crook.
• adj. Not straight; having one or more bends or angles.
• adj. Set at an angle; not vertical or square.
• adj. (figuratively) Dishonest or illegal; corrupt.

difficult

• adj. Hard, not easy, requiring much effort.
• adj. (often of a person, or a horse, etc) Hard to manage, uncooperative, troublesome.
• adj. (obsolete) Unable or unwilling.
• v. (obsolete, transitive) To make difficult; to impede; to perplex.

gnarled

• adj. Knotty and misshapen.
• adj. Made rough by age or hard work.
• v. simple past tense and past participle of gnarl (Etymology 1).
• v. simple past tense and past participle of gnarl (Etymology 2).

gnarly

• adj. Having or characterized by gnarls; gnarled.
• adj. (slang) Excellent; attractive.
• adj. (slang, US) Dangerous; difficult.
• adj. (slang, US) Unpleasant, awful, ugly.

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.

involved

• adj. Complicated.
• adj. Associated with others, be a participant or make someone be a participant (in a crime, process, etc.).
• adj. Having an affair with someone.
• v. simple past tense and past participle of involve.

knobbed

• v. simple past tense and past participle of knob.
• adj. Having a knob or knobs.

knotted

• adj. full of knots, knotty.
• adj. tied in knots.
• adj. tangled, tangly, knotty, entangled, matted, snarled, unkempt, or uncombed.
• v. simple past tense and past participle of knot.

problematic

• adj. Posing a problem; having or suffering from problem(s).
• n. (chiefly in the plural) A problem or difficulty in a particular field of study.

problematical

• adj. doubtful or disputed.
• adj. dubious or ambiguous.

snarled

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

snarly

• adj. Given to snarling or growling.

tangled

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

tortuous

• adj. Twisted; having many turns; convoluted.
• adj. (obsolete) injurious; tortious.
• adj. (astrology) oblique; applied to the six signs of the zodiac (from Capricorn to Gemini) that ascend most…

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.