/ Dictionary / Index U underwent: Meaning and Definition of Find definitions for: un•der•went Pronunciation: (un"dur-went'), [key] — v. pt. of Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: underwent (Thesaurus) underweight underwhelm Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language