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unbeatable

adjective
 
 
/ʌnˈbiː.tə.bl̩/ US  /-t̬ə-/ approving

Definition

unable to be defeated or improved because of excellent quality: The 23-year-old US tennis star looks unbeatable this season. For good pizzas at a reasonable price they're unbeatable.Physically strong and powerful
(Definition of unbeatable adjective from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

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