- belief in a god or gods
- belief in one God; monotheism
- belief in one God viewed as creator and ruler of the universe and known by revelation
Origin of theismthe(o)- + -ism
Belief in the existence of a god or gods, especially belief in a personal God as creator and ruler of the world.
- the·is′tic, the·is′ti·cal
(countable and uncountable, plural theisms)