stun - definition and synonyms

verb [transitive] 

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present tense
present participlestunning
past tensestunned
past participlestunned
  1. 1
    to shock and surprise someone so much that they cannot react immediately

    I was stunned to find that he’d left without us.

    stun at/by:

    All of them were stunned by the news.

  2. 2
    to hit someone so hard on the head that they cannot defend themselves or they become unconscious for a short time

    A mugger stunned him with a brick and stole his wallet.

  3.   From our crowdsourced Open Dictionary
    used without an object to say that someone or something is very impressive, beautiful, etc

    Kate Middleton stuns in gorgeous pink dress for visit to Blessed Sacrament school.

    Submitted from United Kingdom on 01/07/2014