/ Dictionary / Index F fain: Meaning and Definition of Find definitions for: fain Pronunciation: (fān), [key] — adv. gladly; willingly: He fain would accept. —adj. content; willing: They were fain to go. constrained; obliged: He was fain to obey his Lord. glad; pleased. desirous; eager. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: fain (Thesaurus) failure fainaigue Related Content Daily Word Quiz: careening Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language