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- Dictionaryir·ra·tion·al·i·ty/ˌi(r)ˌraSHəˈnalədē/
noun
- 1. the quality of being illogical or unreasonable: "the sheer irrationality of continuing a policy doomed to failure"
- 2. the quality of a number, quantity, or expression being irrational: "the irrationality of square roots"
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