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impossible
/ɪmˈpɒs.ə.bəl/
noun
An impossibility
"Late 14th century: “Madame,” quod he, “this were an impossible!” — Geoffrey Chaucer, ‘The Franklin's Tale’, Canterbury Tales"
adjective
Not possible; not able to be done or happen.
"It is difficult, if not impossible, to memorize 20,000 consecutive numbers."
(of a person) Very difficult to deal with.
"You never listen to a word I say – you're impossible!"
Imaginary
"impossible quantities, or imaginary numbers"
Synonymsunpossible
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