Adynaton

Adynaton (plural adynata) is a figure of speech in the form of hyperbole taken to such extreme lengths as to insinuate a complete impossibility:

The word derives from the Greek ἀδύνατον (adunaton), neuter of ἀδύνατος (adunatos), "unable, impossible" (a-, "without" + dynasthai, "to be powerful").

Adynaton was a widespread literary and rhetorical device during the Classical Period. Its plural form (adynata) was translated in Latin as impossibilia. A frequent usage was to refer to one highly unlikely event occurring sooner than another:

However it largely fell into disuse during the Middle Ages before undergoing a minor revival in the works of romantic poets, who would boast of the power of their love, and how it could never end.

Adynata are sometimes used within works of fiction or drama:

Impossible tasks appear often in legends and folklore, such as the tale of "The Spinning-Woman by the Spring", and can form elements of ballads, riddles and proverbs.

Some modern adynata include:

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