TRIGAMY Antonyms There are 2 antonyms of the word trigamy. (opposite meanings)Did you mean?Definition of TRIGAMYAlso try opposite words for..trigamisttrigamousBest Opposite Words For TRIGAMYTop 20Top 10 Top 20 (Default)Top 50 Top 100 All All (Default)WordsPhrases All All (Default)Verb Noun Adjective Adverb RankWordSave?Synonyms..UsageType1monogamynounn2polygamynounn Alternatives for MONOGAMY Words (6)commitmentconstancyfaithfulnessfidelityloyaltymonogamousnessOpposite words for monogamy