/ Dictionary / Index I inanity: Meaning and Definition of Find definitions for: in•an•i•ty Pronunciation: (i-nan'i-tē), [key] — pl. -ties lack of sense, significance, or ideas; silliness. something inane. shallowness; superficiality. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: inanity (Thesaurus) inanition inapparent Related Content Daily Word Quiz: penury Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language