/ Dictionary / Index U unwisdom: Meaning and Definition of Find definitions for: un•wis•dom Pronunciation: (un-wiz'dum), [key] — n. lack of wisdom; folly; rashness; recklessness: an act of unwisdom. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. unwired unwise Related Content Daily Word Quiz: benevolent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language