POLYTHEIST Meaning of POLYTHEIST in English polytheist BrE AmE ˈpɒl i θi ɪst ˈ••ˌθiː ɪst, § -əst AmE ˈpɑːl-▷ polytheist|s s Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012