Synonyms for acid Found 24 synonyms across 3 meanings for “acid”. street name for lysergic acid diethylamide (noun) battery-aciddosedotelvispanesupermanzen harsh or corrosive in tone (adj) acerbacerbicacridbitterblisteringcausticsulfuroussulphurousvirulentvitriolic being sour to the taste (adj) acidicacidulentacidulous Explore Related Words Rhymes with acidSynonyms for battery-acidSynonyms for doseSynonyms for dotSynonyms for elvisSynonyms for pane Synonym Finder | Rhyme Finder | Poetry Editor