acid

Adjective

• having the characteristics of an acid
  • an acid reaction
    

• being sour to the taste

• harsh or corrosive in tone
  • an acerbic tone piercing otherwise flowery prose
    
  • a barrage of acid comments
    
  • her acrid remarks make her many enemies
    
  • bitter words
    
  • blistering criticism
    
  • caustic jokes about political assassination, talk-show hosts and medical ethics
    
  • a sulfurous denunciation
    
  • a vitriolic critique
    

Noun

• street name for lysergic acid diethylamide

• any of various water-soluble compounds having a sour taste and capable of turning litmus red and reacting with a base to form a salt

Related words

• Synonyms: 
  acidic , acidulent , acidulous