THEISMS Antonyms There are 2 antonyms of the word theisms. (opposite meanings)Did you mean?Definition of THEISMSAlso try opposite words for..theismtheisttheisticBest Opposite Words For THEISMSTop 20Top 10 Top 20 (Default)Top 50 Top 100 All All (Default)WordsPhrases All All (Default)Verb Noun Adjective Adverb RankWordSave?Synonyms..UsageType1atheismsnounn2atheismnounn Alternatives for ATHEISM Words (6)agnosticismdisbeliefgodlessnessirreligionskepticismnonbeliefOpposite words for atheism