ACID HYDROGEN Antonyms There are 4 antonyms of the phrase acid hydrogen. (opposite meanings)Did you mean?Definition of ACID HYDROGENSynonyms of ACID HYDROGENAlso try opposite words for..acidacidicacidifyhydrogenacidifiedBest Opposite Words For ACID HYDROGENTop 20Top 10 Top 20 (Default)Top 50 Top 100 All All (Default)WordsPhrases All All (Default)Verb Noun Adjective Adverb RankWordSave?Synonyms..UsageType1alkalineadjectiveadj2basicadjectiveadj3nonacidadjectiveadj4nonacidicadjectiveadj Alternatives for ALKALINE Words (7)basicreagentundeviatingnonacidnonacidicunacidicalkalicOpposite words for alkaline Alternatives for BASIC Words (16)basicelementaryessentialfundamentalnecessaryordinaryplainprimarysimplestraightforwarduncomplicatedalkalinecanoniccanonicalintroductorystapleOpposite words for basic Alternatives for NONACID Words (2)alkalinebasicOpposite words for nonacid