Synonyms of the word

acerbic

• adj. Tasting sour or bitter.
• adj. Sharp, harsh, biting.

acerb

• adj. Sour, bitter, and harsh to the taste, as unripe fruit.
• adj. Sharp and harsh in expressing oneself.

acid

• adj. Sour, sharp, or biting to the taste; tart; having the taste of vinegar.
• adj. (figuratively) Sour-tempered.
• adj. Of or pertaining to an acid; acidic.
• adj. (music) Denoting a musical genre that is a distortion (as if hallucinogenic) of an existing genre, as…
• n. A sour substance.
• n. (chemistry) Any of several classes of compound having the following properties:-.
• n. (slang) lysergic acid diethylamide (LSD).

acrid

• adj. Sharp and harsh, or bitter and not to the taste; pungent.
• adj. Causing heat and irritation; corrosive.
• adj. Caustic; bitter; bitterly irritating.

astringent

• n. A substance which draws tissue together, thus restricting the flow of blood.
• adj. Sharp, caustic, severe.
• adj. (medicine) Having the effect of drawing tissue together; styptic.

bitter

• adj. Having an acrid taste (usually from a basic substance).
• adj. Harsh, piercing or stinging.
• adj. Hateful or hostile.
• adj. Cynical and resentful.
• n. (usually in the plural bitters) A liquid or powder, made from bitter herbs, used in mixed drinks or as…
• n. A type of beer heavily flavored with hops.
• n. (nautical) A turn of a cable about the bitts.
• v. To make bitter.
• n. (computing, informal, in combination) A hardware system whose architecture is based around units of the…

blistering

• v. present participle of blister.
• adj. Causing blisters.
• adj. Very hot.
• adj. Harsh or corrosive.
• adj. Very aggressive.
• adj. Very fast.
• n. (medicine, veterinary) The practice of forming blisters on the skin, to promote blood flow and aid healing.

caustic

• adj. Capable of burning, corroding or destroying organic tissue.
• adj. (of language, etc.) Sharp, bitter, cutting, biting, and sarcastic in a scathing way.
• n. Any substance or means which, applied to animal or other organic tissue, burns, corrodes, or destroys…
• n. (optics, computer graphics) The envelope of reflected or refracted rays of light for a given surface or…
• n. (mathematics) The envelope of reflected or refracted rays for a given curve.
• n. (informal, chemistry) Caustic soda.

sour

• adj. Having an acidic, sharp or tangy taste.
• adj. Made rancid by fermentation, etc.
• adj. Tasting or smelling rancid.
• adj. Peevish or bad-tempered.
• adj. (of soil) Excessively acidic and thus infertile.
• adj. (of petroleum) Containing excess sulfur.
• adj. Unfortunate or unfavorable.
• adj. (music) Off-pitch, out of tune.
• n. The sensation of a sour taste.
• n. A drink made with whiskey, lemon or lime juice and sugar.
• n. (by extension) Any cocktail containing lemon or lime juice.
• n. A sour or acid substance; whatever produces a painful effect.
• v. (transitive) To make sour.
• v. (intransitive) To become sour.
• v. (transitive) To spoil or mar; to make disenchanted.
• v. (intransitive) To become disenchanted.
• v. (transitive) To make (soil) cold and unproductive.
• v. To macerate (lime) and render it fit for plaster or mortar.

sulfurous

• adj. Containing sulfur.
• adj. (chemistry) Of, or relating to sulfur, especially in its lower oxidation state.

sulphurous

• adj. (chiefly British spelling) Alternative spelling of sulfurous.

unpleasant

• adj. Not pleasant.

venomous

• adj. Full of venom.
• adj. Toxic; poisonous.
• adj. Noxious; evil.
• adj. Malignant; spiteful; hateful.
• adj. Producing venom (poison usually injected into an enemy or prey by biting or stinging) in glands or accumulating…
• adj. powerful.

virulent

• adj. (chiefly medicine, of a disease or disease-causing agent) Highly infectious, malignant, or deadly.
• adj. Hostile to the point of being venomous; intensely acrimonious.

vitriolic

• adj. (chemistry, dated) Of or pertaining to vitriol; derived from or resembling vitriol; vitriolous.
• adj. (figuratively) Bitterly scathing, caustic.