To reduce the value or impair the quality of.(verb-transitive)
To corrupt morally; debase.(verb-transitive)
To make ineffective; invalidate. See Synonyms at corrupt.(verb-transitive)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "vitiate" in a sentence
"But though there is an inaccuracy in saying that the freezing of water is due to the loss of its heat, no practical error arises from it; nor will a parallel laxity of expression vitiate our statements respecting the multiplication of effects."
"Just remembered that I completely forgot to add a Word of the Week this week - so in view of the topic, how about 'vitiate'?"
"Chief minister BS Yeddyurappa cautioned the Congress against any attempt to "vitiate" the law and order situation with their provocative speeches and asserted that his government was capable of handling such situations."