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English definition of “definitive”

definitive

adjective uk   /dɪˈfɪn.ɪ.tɪv/ us    /-ə.t̬ɪv/
C2 not able to be changed or improved: a definitive judgment/ruling There are no definitive answers/solutions to this problem. The police have no definitive proof of her guilt. considered to be the best of its type: He's written the definitive guide to Thailand.
definitively
adverb uk   /-li/ us  
(Definition of definitive from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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