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English definition of “improbable”

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improbable

adjective uk   /ɪmˈprɒb.ə.bl̩/ us    /-ˈprɑː.bə-/
not likely to happen or be true: It's highly improbable that Norris will agree. an improbable-sounding excuse
improbably
adverb uk   /-bli/ us  
improbably cheap prices improbably large/long
improbability
noun [C or U] uk   /ɪmˌprɒb.əˈbɪl.ɪ.ti/ us    /ˌɪm.prɑː.bəˈbɪl.ə.t̬i/
(Definition of improbable from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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