/ Dictionary / Index F fatuity: Meaning and Definition of Find definitions for: fa•tu•i•ty Pronunciation: (fu-t'i-tē, -ty'-), [key] — pl. -ties. complacent stupidity; foolishness. something foolish; bêtise. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: fatuity (Thesaurus) fatuitous fatuous Related Content Daily Word Quiz: fabricate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language