MESOZOIC Antonyms There are 2 antonyms of the word mesozoic. (opposite meanings)Did you mean?Definition of MESOZOICSynonyms of MESOZOICBest Opposite Words For MESOZOICTop 20Top 10 Top 20 (Default)Top 50 Top 100 All All (Default)WordsPhrases All All (Default)Verb Noun Adjective Adverb RankWordSave?Synonyms..UsageType1cenozoicnoun, adjectiven, adj2paleozoicnoun, adjectiven, adj