/ Dictionary / Index U unriddle: Meaning and Definition of Find definitions for: un•rid•dle Pronunciation: (un-rid'l), [key] — -dled, -dling. to solve (a riddle, mystery, etc.). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. unrestraint unrig Related Content Daily Word Quiz: deleterious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language