/ Dictionary / Index D debilitate: Meaning and Definition of Find definitions for: de•bil•i•tate Pronunciation: (di-bil'i-tāt"), [key] — -tat•ed, -tat•ing. to make weak or feeble; enfeeble: The siege of pneumonia debilitated her completely. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: debilitate (Thesaurus) debenture bond debility Related Content Daily Word Quiz: diligent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language