Dictionary.com

vitiate

[ vish-ee-eyt ]
/ ˈvɪʃ iˌeɪt /
Save This Word!
See synonyms for: vitiate / vitiation on Thesaurus.com

verb (used with object), vi·ti·at·ed, vi·ti·at·ing.

to impair the quality of; make faulty; spoil.
to impair or weaken the effectiveness of.
to make legally defective or invalid; invalidate: to vitiate a claim.

QUIZZES

QUIZ YOURSELF ON “ITS” VS. “IT’S”!

Apostrophes can be tricky; prove you know the difference between it’s and its in this crafty quiz!
Question 1 of 12
On the farm, the feed for chicks is significantly different from the roosters’; ______ not even comparable.

Origin of vitiate

First recorded in 1525–35; from Latin vitiātus, past participle of vitiāre “to spoil, impair,” derivative of vitium “blemish, defect, fault” + -ātus; see vice1, -ate1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

British Dictionary definitions for vitiate

vitiate
/ (ˈvɪʃɪˌeɪt) /

verb (tr)

to make faulty or imperfect
to debase, pervert, or corrupt
to destroy the force or legal effect of (a deed, etc)to vitiate a contract
vitiable, adjectivevitiation, nounvitiator, noun
C16: from Latin vitiāre to injure, from vitium a fault
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
Get Online Help For Kids!