from The American Heritage® Dictionary of the English Language, 5th Edition.

  • transitive verb To reduce the value or quality of; impair or spoil.
  • transitive verb To corrupt morally; debase: synonym: corrupt.
  • transitive verb To make ineffective (a contract or legal stipulation, for example); invalidate.

from The Century Dictionary.

  • To render vicious, faulty, or imperfect; injure the quality or substance of; cause to be defective; impair; spoil; corrupt: as, a vitiated taste.
  • To cause to fail of effect, either in whole or in part; render invalid or of no effect; destroy the validity or binding force of, as of a legal instrument or a transaction; divest of legal value or authority; invalidate: as, any undue influence exerted on a jury vitiates their verdict; fraud vitiates a contact; a court is vitiated by the presence of unqualified persons sitting as members of it.
  • Synonyms Pollute, Corrupt, etc. (see taint), debase, deprave.

from the GNU version of the Collaborative International Dictionary of English.

  • transitive verb To make vicious, faulty, or imperfect; to render defective; to injure the substance or qualities of; to impair; to contaminate; to spoil
  • transitive verb To cause to fail of effect, either wholly or in part; to make void; to destroy, as the validity or binding force of an instrument or transaction; to annul.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • verb transitive to spoil, make faulty; to reduce the value, quality, or effectiveness of something
  • verb transitive to debase or morally corrupt
  • verb transitive, archaic to violate, to rape
  • verb transitive to make something ineffective, to invalidate

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • verb corrupt morally or by intemperance or sensuality
  • verb make imperfect
  • verb take away the legal force of or render ineffective


from The American Heritage® Dictionary of the English Language, 4th Edition

[Latin vitiāre, vitiāt-, from vitium, fault.]

from Wiktionary, Creative Commons Attribution/Share-Alike License

From vitiātus, the perfect passive participle of Latin vitiō ("damage, spoil"), from vitium ("vice").



Log in or sign up to get involved in the conversation. It's quick and easy.

  • For loud prayer is good for weak lungs and for a vitiated throat. (from Jubilate Agno by Christopher Smart)

    December 31, 2007

  • Many vitiate their principles in the acquisition of riches; and who can wonder that what is gained by fraud and extortion is enjoyed with tyranny and excess?

    Samuel Johnson, "The Rambler (No. CLXXII)"

    July 24, 2011