/ Dictionary / Index U unambivalent: Meaning and Definition of Find definitions for: un•am•biv•a•lent Pronunciation: (un"am-biv'u-lunt), [key] — adj. not ambivalent; definite; certain. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. unaltered un-American Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language