A.M. Antonyms There are 3 antonyms of the abbr a.m.. (opposite meanings)Did you mean?Definition of A.M.Best Opposite Words For A.M.Top 20Top 10 Top 20 (Default)Top 50 Top 100 All All (Default)WordsPhrases All All (Default)Verb Noun Adjective Adverb RankWordSave?Synonyms..UsageType1pm2afternoonnounn3p.m.adverb, adjectiveadv, adj Alternatives for AFTERNOON Words (8)daydaylightdaytimemiddaynoonaftarvoundernPhrases (1)good afternoonOpposite words for afternoon