Definitions

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

  • transitive verb To damage in reputation; disgrace.
  • transitive verb To cause to be doubted or distrusted.
  • transitive verb To refuse to believe.
  • noun Loss of respect or damage to one's reputation.
  • noun Lack or loss of trust or belief; doubt.
  • noun Something that brings disgrace or distrust.

from The Century Dictionary.

  • noun Want of credit or good repute; some degree of disgrace or reproach; disesteem: applied to persons or things: as, frauds that bring manufactures into discredit; a transaction much to his discredit.
  • noun Want of belief, trust, or confidence; disbelief: as, his story is received with discredit.

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

  • noun The act of discrediting or disbelieving, or the state of being discredited or disbelieved.
  • noun Hence, some degree of dishonor or disesteem; ill repute; reproach; -- applied to persons or things.
  • transitive verb To refuse credence to; not to accept as true; to disbelieve.
  • transitive verb To deprive of credibility; to destroy confidence or trust in; to cause disbelief in the accuracy or authority of.
  • transitive verb To deprive of credit or good repute; to bring reproach upon; to make less reputable; to disgrace.

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

  • verb transitive To harm the good reputation of a person; to cause an idea or piece of evidence to seem false or unreliable.

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

  • verb damage the reputation of
  • verb cause to be distrusted or disbelieved
  • noun the state of being held in low esteem
  • verb reject as false; refuse to accept

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

dis- +‎ credit.

Examples

Comments

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