T0147500 (thē′ĭz′əm)n. Belief in the existence of a god or gods, especially belief in a personal God as creator and ruler of the world.the′ist n.the·is′tic, the·is′ti·cal adj.the·is′ti·cal·ly adv.Thesaurus
Adj.
1.
theistical - of or relating to theismtheist, theistic