/ Dictionary / Index T tedium: Meaning and Definition of Find definitions for: te•di•um Pronunciation: (tē'dē-um), [key] — n. the quality or state of being wearisome; irksomeness; tediousness. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: tedium (Thesaurus) tedious tee Related Content Daily Word Quiz: careening Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language