DIABASIC Antonyms There are 9 antonyms of the word diabasic. (opposite meanings)Did you mean?Definition of DIABASICAlso try opposite words for..diabasediabasesBest Opposite Words For DIABASICTop 20Top 10 Top 20 (Default)Top 50 Top 100 All All (Default)WordsPhrases All All (Default)Verb Noun Adjective Adverb RankWordSave?Synonyms..UsageType1acidicadjectiveadj2graniticadverb, adjectiveadv, adj3intermediateadjectiveadj4siliciousadjectiveadj5andesiticadverb, adjectiveadv, adj6felsicadjectiveadj7rhyoliticadjectiveadj8sialicnoun, adjectiven, adj9silicicadjectiveadj Alternatives for ACIDIC Words (12)acerbicaceticbittercitricpungentsharpsourtangyvinegaryacidacidulentacidulousOpposite words for acidic Alternatives for GRANITIC Words (6)stonyflintflintygranitelikeobduraterocklikeOpposite words for granitic Alternatives for INTERMEDIATE Words (15)averagemediumhalfwayin-betweeninterveningmeanmiddlemidwaymoderatestandardtransitionalarbitrateintercedeliaisemediateOpposite words for intermediate Alternatives for SILICIOUS Words (6)siliceouschertyquartzoserockysiliciousquartziticOpposite words for silicious Alternatives for FELSIC Words (1)acidicOpposite words for felsic