/ Dictionary / Index I irretentive: Meaning and Definition of Find definitions for: ir•re•ten•tive Pronunciation: (ir"i-ten'tiv), [key] — adj. not retentive; lacking power to retain, esp. mentally. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. irresponsive irretraceable Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language