/ Dictionary / Index U unhallow: Meaning and Definition of Find definitions for: un•hal•low Pronunciation: (un-hal'ō), [key] — v.t. to desecrate; profane. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: unhallow (Thesaurus) unhair unhallowed Related Content Daily Word Quiz: inutiae Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language