/ Dictionary / Index I ill humor: Meaning and Definition of Find definitions for: ill' hu'mor Pronunciation: [key] a disagreeable or surly mood. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. ill-gotten Illía 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