probabilism

noun

prob·​a·​bi·​lism ˈprä-bə-bə-ˌli-zəm 

1

: a theory that in disputed moral questions any solidly probable course may be followed even though an opposed course is or appears more probable

2

: a theory that certainty is impossible especially in the sciences and that probability suffices to govern belief and action

probabilist

ˈprä-bə-bə-list 

adjective or noun

Word History

Etymology

French probabilisme, from Latin probabilis probable

First Known Use

1719, in the meaning defined at sense 1