theism - the doctrine or belief in the existence of a God or godsfaith, religion, religious belief - a strong belief in a supernatural power or powers that control human destiny; "he lost his faith but not his morality" pantheism - the doctrine or belief that God is the universe and its phenomena (taken or conceived of as a whole) or the doctrine that regards the universe as a manifestation of God pantheism - (rare) worship that admits or tolerates all gods |