/ Dictionary / Index I imperfectible: Meaning and Definition of Find definitions for: im•per•fect•i•ble Pronunciation: (im"pur-fek'tu-bul), [key] — adj. that cannot be perfected. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: imperfectible (Thesaurus) imperfect fungus imperfection 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