/ Dictionary / Index A adaptive: Meaning and Definition of Find definitions for: a•dap•tive Pronunciation: (u-dap'tiv), [key] — adj. serving or able to adapt; showing or contributing to adaptation: the adaptive coloring of a chameleon. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: adaptive (Thesaurus) adapter adaptive optics Related Content Daily Word Quiz: immense Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language