/ Dictionary / Index I imperatival: Meaning and Definition of Find definitions for: im•per•a•ti•val Pronunciation: (im-per"u-tī'vul), [key] — adj. of, pertaining to, or characteristic of the grammatical imperative. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. imper. imperative Related Content Daily Word Quiz: acquiesce Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language