GIBBSITE Antonyms There are 3 antonyms of the word gibbsite. (opposite meanings)Did you mean?Definition of GIBBSITEBest Opposite Words For GIBBSITETop 20Top 10 Top 20 (Default)Top 50 Top 100 All All (Default)WordsPhrases All All (Default)Verb Noun Adjective Adverb RankWordSave?Synonyms..UsageType1boehmitenoun, adjectiven, adj2brucitenounn3diasporenounn