The definition of a catch-22 is a situation in which there is no good solution or resolution possible because of the way in which the factors of the solution relate to each other.
(noun)An example of a catch-22 is the idea that you have to have money to make money.
See Catch-22 in Webster's New World College Dictionary
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noun
Origin: from the novel Catch-22 (1961) by J. Heller
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