ACIDS Antonyms There are 9 antonyms of the word acids. (opposite meanings)Did you mean?Definition of ACIDSSynonyms of ACIDSAlso try opposite words for..acidacidicacidifyacidificationBest Opposite Words For ACIDSTop 20Top 10 Top 20 (Default)Top 50 Top 100 All All (Default)WordsPhrases All All (Default)Verb Noun Adjective Adverb RankWordSave?Synonyms..UsageType1alkalineadjectiveadj2alkalisnounn3basesverb, nounv, n4neutralsnoun, adjectiven, adj5nonacidadjectiveadj6nonacidicadjectiveadj7nonacidsnounn8alkalinounn9baseverb, nounv, n Alternatives for ALKALINE Words (7)basicreagentundeviatingnonacidnonacidicunacidicalkalicOpposite words for alkaline Alternatives for ALKALIS Words (4)basescausticslyesbaseOpposite words for alkalis Alternatives for BASES Words (19)bedrockgroundsfootingsfoundationspillarssubstructuressupportsunderpinningsbasealkalibassocornerstonefootingfoundationfundamentgroundgroundworkprimitiveradicalPhrases (1)f clefOpposite words for bases Alternatives for NEUTRALS Words (15)indifferentdetacheddisinterestedequitablefairimpartialnonpartisanobjectiveunbiaseduncommitteduninvolvedachromaticelectroneutralimpersonalinertOpposite words for neutrals Alternatives for NONACID Words (2)alkalinebasicOpposite words for nonacid Alternatives for ALKALI Words (8)basealkalescentalkalineantacidcarbonatedcausticlyesoapOpposite words for alkali