definitive - definition and synonyms

 
adjective [usually before noun] 

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/dɪˈfɪnətɪv/
  1. 1
    better than all others

    This little book is the definitive travel guide to Moscow.

     Synonyms and related words
  2. 2
    certain and unlikely to change

    Doctors have now been able to make a definitive diagnosis.

    a definitive statement

derived word

definitively

adverb