/ɪmˈprɑːbəbl/
im·prob·able
BrE /ɪmˈprɒbəbl/
NAmE /ɪmˈprɑːbəbl/
not likely to be true or to happen
SYN unlikely
an improbable story
It all sounded highly improbable.
~ that…
It seems improbable that the current situation will continue.
OPP probable
seeming strange because it is not what you would expect
SYN unexpected
Her hair was an improbable shade of yellow.
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im·prob·abil·ity
BrE /ɪmˌprɒbəˈbɪləti/
NAmE /ɪmˌprɑːbəˈbɪləti/
[U, C]
the improbability of finding them alive
statistical improbability
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im·prob·ably
BrE /ɪmˈprɒbəbli/
NAmE /ɪmˈprɑːbəbli/
He claimed, improbably, that he had never been there.
an improbably happy ending