trouncer

/ˈtraʊnsər/
noun
  1. A person or thing that defeats someone or something decisively.
    • The champion boxer was known as a trouncer of all challengers.
    • The new video game is a trouncer of its competitors in sales and reviews.
    • In the debate, she was a trouncer, leaving her opponent with no good arguments.
Antonyms
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