/ Dictionary / Index D deranged: Meaning and Definition of Find definitions for: de•ranged Pronunciation: (di-rānjd'), [key] — adj. insane. disordered; disarranged. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: deranged (Thesaurus) derange derangement Related Content Daily Word Quiz: agitated Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language