[ uhn-der-went ]
/ ˌʌn dərˈwɛnt /


simple past tense of undergo.

Definition for underwent (2 of 2)


[ uhn-der-goh ]
/ ˌʌn dərˈgoʊ /

verb (used with object), un·der·went, un·der·gone, un·der·go·ing.

to be subjected to; experience; pass through: to undergo surgery.
to endure; sustain; suffer: to undergo sustained deprivation.

Origin of undergo

before 1000; Middle English undergon, Old English undergān. See under-, go1

Related forms

un·der·go·er, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for underwent

British Dictionary definitions for underwent (1 of 2)


/ (ˌʌndəˈwɛnt) /


the past tense of undergo

British Dictionary definitions for underwent (2 of 2)


/ (ˌʌndəˈɡəʊ) /

verb -goes, -going, -went or -gone

(tr) to experience, endure, or sustainto undergo a dramatic change of feelings

Derived Forms

undergoer, noun

Word Origin for undergo

Old English: earlier meanings were more closely linked with the senses of under and go
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012