/ Dictionary / Index U unharness: Meaning and Definition of Find definitions for: un•har•ness Pronunciation: (un-här'nis), [key] — v.t. to strip of harness; detach the harness from (a horse, mule, etc.). to divest of armor, as a knight or warhorse. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: unharness (Thesaurus) unhappy unhasp Related Content Daily Word Quiz: tactful Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language