Dictionary.com
Thesaurus.com
Synonyms

discredit

American  
[dis-kred-it] / dɪsˈkrɛd ɪt /

verb (used with object)

  1. to injure the credit or reputation of; defame.

    an effort to discredit honest politicians.

    Synonyms:
    undermine, tarnish, disgrace, disparage
  2. to show to be undeserving of trust or belief; destroy confidence in.

    Later research discredited earlier theories.

  3. to give no credence to; disbelieve.

    There was good reason to discredit the witness.


noun

  1. loss or lack of belief or confidence; disbelief; distrust.

    His theories met with general discredit.

  2. loss or lack of repute or esteem; disrepute.

  3. something that damages a good reputation.

    This behavior will be a discredit to your good name.

discredit British  
/ dɪsˈkrɛdɪt /

verb

  1. to damage the reputation of

  2. to cause to be disbelieved or distrusted

  3. to reject as untrue or of questionable accuracy

"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

noun

  1. a person, thing, or state of affairs that causes disgrace

  2. damage to a reputation

  3. lack of belief or confidence

"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

Other Word Forms

  • undiscredited adjective

Etymology

Origin of discredit

First recorded in 1550–60; dis- 1 + credit

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

They also sought to discredit social media addiction as a concept, while trying to cast doubt on Kaley’s claim to the diagnosis.

From Los Angeles Times

“This makes us vulnerable and discredits our goal to be a strong, independent geopolitical power,” Pentus-Rosimannus said.

From The Wall Street Journal

Duesberg’s intellectual journey points to an eternal question in science: At what point does a theory become so discredited and the empirical evidence against it so strong, that its advocates should be ignored?

From Los Angeles Times

Article 133 covers dishonorable conduct, while Article 134 is the catchall provision criminalizing conduct that is harmful to good order and discipline or brings discredit on the armed forces.

From The Wall Street Journal

In a statement Monday, Rodriguez said “people are pointing to messages where I was polite, grateful, or vulnerable — and trying to use that to discredit me.”

From Los Angeles Times