/ Dictionary / Index O obligative: Meaning and Definition of Find definitions for: ob•li•ga•tive Pronunciation: (ob'li-gā"tiv), [key] — adj. implying or involving obligation: an obligative commitment. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. obligational authority obligato Related Content Daily Word Quiz: impetuous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language