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English Lexicon

Impossible

/ɪmˈpɒs.ə.bəl/
adjectiveCEFR A2 (Elementary)Top #950 frequency
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Comprehensive Definitions & Senses

2 senses
As adjective
  1. 1

    Not able to occur, exist, or be done.

    "It seemed impossible to finish the entire project in just one day."
  2. 2

    Very difficult to deal with, endure, or satisfy; unreasonable.

    "She had to work with an impossible boss who constantly changed deadlines."
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Antonyms & Contrasting Words (1)

Linguistic Origin & Historical Etymology

Derived from the Late Latin impossiblem, formed by the assimilation of the negative prefix in- (not) with possiblem (able, capable), stemming from posse (to be able). It entered the English language in the late 14th century through Old French, originally denoting something that cannot be done or occur.

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