/ Dictionary / Index E equiprobabilism: Meaning and Definition of Find definitions for: e•qui•prob•a•bi•lism Pronunciation: (ē"kwu-prob'u-bu-liz"um, ek"wu-), [key] — n. Rom. Cath. Theol. a theory that in cases of doubt as to the lawfulness or unlawfulness of an action, it is permissible to follow either argument. Cf. probabilism (def. 2). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. equipotential equiprobable Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language