probabilism vs probabilistic

probabilism is a noun but probabilistic is not a noun.

Word	Noun	Adjective	Verb	Adverb
probabilism	Yes	No	No	No
probabilistic	No	Yes	No	No

probabilism (noun)	probabilistic (noun)
(philosophy) the doctrine that (since certainty is unattainable) probability is a sufficient basis for belief and action
a Roman Catholic system of casuistry that when expert opinions differ an actor can follow any solidly probable opinion that he wishes even though some different opinion might be more probable

probabilism (adjective)	probabilistic (adjective)
	of or relating to or based on probability
	of or relating to the Roman Catholic philosophy of probabilism