ARCHEAN EON Antonyms There are 2 antonyms of the phrase archean eon. (opposite meanings)Did you mean?Definition of ARCHEAN EONAlso try opposite words for..eonarcheanBest Opposite Words For ARCHEAN EONTop 20Top 10 Top 20 (Default)Top 50 Top 100 All All (Default)WordsPhrases All All (Default)Verb Noun Adjective Adverb RankWordSave?Synonyms..UsageType1modernadverb, adjectiveadv, adj2recentadverb, adjectiveadv, adj Alternatives for MODERN Words (9)advancedbodonicontemporarycurrentforward-lookinginnovativemodmodernisticnewPhrases (2)bodoni fontmodern fontOpposite words for modern Alternatives for RECENT Words (11)contemporarycurrentfreshlatestlattermodernnewpresenttrendyholocenelatePhrases (4)up-to-dateup-to-the-minuteholocene epochrecent epochOpposite words for recent