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opponent - definition and synonyms

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noun [countable]     opponent pronunciation in American English
Word Forms
  1. someone who is competing against you

    You’re facing a much more experienced opponent in tomorrow’s game.

    His Republican opponent received only 36 percent of the vote.

    1. a.
      someone who is arguing or fighting with you

      The president’s former adviser is now one of his most outspoken opponents.

    2. b.
      someone who disagrees with something such as an idea or plan and tries to change or stop it
      opponent of:

      opponents of the legislation



to manipulate someone psychologically so that they begin to question their own perceptions and memories

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Open Dictionary

Dunning-Kruger effect

the phenomenon by which an incompetent person is too incompetent to understand his own incompetence

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