/ Dictionary / Index U unconscionable: Meaning and Definition of Find definitions for: un•con•scion•a•ble Pronunciation: (un-kon'shu-nu-bul), [key] — adj. not guided by conscience; unscrupulous. not in accordance with what is just or reasonable: unconscionable behavior. excessive; extortionate: an unconscionable profit. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: unconscionable (Thesaurus) unconnected unconscious 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