/ Dictionary / Index I irritating: Meaning and Definition of Find definitions for: ir•ri•tat•ing Pronunciation: (ir'i-tā"ting), [key] — adj. causing irritation; annoying; provoking: irritating questions. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: irritating (Thesaurus) irritated irritation 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