/ Dictionary / Index U unbolt: Meaning and Definition of Find definitions for: un•bolt Pronunciation: (un-bōlt'), [key] — v.t. to open (a door, window, etc.) by or as if by removing a bolt; unlock; unfasten. to release, as by the removal of threaded bolts: He unscrewed the nuts and unbolted the inspection cover. —v.i. to become unbolted or unfastened. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: unbolt (Thesaurus) unbodied unbolted 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