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improbable

adjective
 
 
/ɪmˈprɒb.ə.bl̩/ US  /-ˈprɑː.bə-/

Definition

not likely to happen or be true: It's highly improbable that Norris will agree. an improbable-sounding excuseImpossible and improbable improbably
 
 
/-bli/ adverb
improbably cheap prices improbably large/longImpossible and improbable
improbability
 
 
/ɪmˌprɒb.əˈbɪl.ɪ.ti/ US  /ˌɪm.prɑː.bəˈbɪl.ə.t̬i/ noun [C or U]
Impossible and improbable
(Definition of improbable adjective from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

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