Synonyms for

Acid

Noun / ˈæsʌd / Another word for acid — explore alternatives below. For syllable breakdowns and pronunciation, see this word on Syllablesworld.

Definition

a chemical substance that has a sour taste and can react with metals to produce hydrogen gas

Synonyms & similar words

superman zen acidulent acrid dot elvis caustic sulfurous pane acidic sulphurous virulent acerb blistering acerbic bitter acidulous vitriolic dose sour tart bitter astringent acidic vinegary sharp pungent acrid tangy sapid acerbic salty tartish lemonlike citrusy acidulous acidy acetic malic

Synonyms by register

Formal

corrosive caustic pungent

Informal

sour tangy sharp

Literary

vitriolic acerbic

Antonyms

alkaline basic sweet mild gentle bland

Common collocations

  • acid rain
  • acid test
  • acid reflux
  • strong acid
  • weak acid
  • acid attack
  • acid wash

Word family

noun acidity
adjective acidic

Usage note

In chemistry, 'acid' refers to a substance with a pH less than 7. Informally, it can describe a sharp or sour taste, or a harsh, critical tone.

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Example sentences

  1. The lemon juice has a lot of acid in it.
  2. She spilled acid on her shirt and it burned a hole through it.
  3. The battery had acid in it that was dangerous to touch.
  4. The chemist poured acid into the beaker to see if it would change color.
  5. The doctor prescribed a medication to help reduce the acid in his stomach.

Quotes

  • Words are like acid, they can melt in your ears; they can also burn.
  • Music is the wine that fills the cup of silence. It is the acid that dissolves the rust of years.
  • Time is the most corrosive acid.

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