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English definition of “unbelievable”

unbelievable

adjective     /ˌʌnbɪˈliːvəbl/
EXTREME B1 extremely bad or good and making you feel surprised: It's unbelievable how lucky she's been.Surprising and shockingMaking people sad, shocked and upset
NOT LIKELY B2 not probable and difficult to believeNot believable
unbelievably adverb
(Definition of unbelievable adjective from the Cambridge Learner's Dictionary © Cambridge University Press)

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