/ Dictionary / Index I ill temper: Meaning and Definition of Find definitions for: ill' tem'per Pronunciation: [key] bad or irritable disposition. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. ill-suited ill-timed Related Content Daily Word Quiz: penchant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language