/ Dictionary / Index U underbid: Meaning and Definition of Find definitions for: un•der•bid Pronunciation: (un"dur-bid'), [key] — -bid, -bid•ding. —v.i. to bid lower than another or too low for the value of something. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: underbid (Thesaurus) underbelly underbite Related Content Daily Word Quiz: cur Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language