/ Dictionary / Index A affinitive: Meaning and Definition of Find definitions for: af•fin•i•tive Pronunciation: (u-fin'i-tiv), [key] — adj. characterized by affinity; closely related or associated. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. affine group affinity Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language