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decisive - definition and synonyms

 
 
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adjective decisive pronunciation in British English /dɪˈsaɪsɪv/
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  1. 1
    making the final result of a situation completely certain

    Gettysburg, site of the final, decisive battle of the Civil War

    Cleveland’s reputation for reliability was the decisive factor in winning the contract.

    The UK has played a decisive role in these negotiations.

  2. 2
    a decisive victory or defeat is one in which the winner does much better than the loser

    a decisive victory for the Labour Party

  3. 3
    able to make choices or decide what to do quickly and confidently

    As a chairman, he was firm and decisive.

    1. a.
      used about someone’s behaviour
      decisive action:

      We must take decisive action to solve this problem.

derived words

decisiveness

noun [uncountable]

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a start-up … whose value has reached more than one billion US dollars

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