/ Dictionary / Index E experientialism: Meaning and Definition of Find definitions for: ex•pe•ri•en•tial•ism Pronunciation: (ik-spēr"ē-en'shu-liz"um), [key] — n. Epistemology. any doctrine or theory that maintains that personal experience is the only or the principal basis of knowledge. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. experiential experiment Related Content Daily Word Quiz: cetacean Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language