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irrational SimpleWikiWiktionaryGoogle検索CollinsCambridgeLongmanLongman英和Learners 【 87158 】 【意味】 "[形容詞] not consistent with or using reason [例] irrational fears [例] irrational animals [例] His fear of flying was irrational. [例] The irrational fear of spiders is a common phobia. [例] They believed that the theory was irrational. [意味] 不合理な, 理不尽な, 不合理の, 不条理な, 理不尽の, 非合理の, 非論理的な, 理性のない ; [反意語] rational ; [類似語] unreasoning, superstitious, nonrational, reasonless, blind ; [派生] irrationality, unreason ; [同義語群] 01926376-a" [形容詞] real but not expressible as the quotient of two integers [例] irrational numbers [例] The square root of 2 is an irrational number. [例] The mathematician proved that the square root of 2 is irrational. [意味] 無理数 ; [反意語] rational ; [同義語群] 02930083-a "[名詞] a real number that cannot be expressed as a rational number [例] Pi is an irrational number. [意味] 無理数 ; [同義語] irrational number ; [上位語] real number, real ; [下位語] algebraic number, transcendental number ; [同義語群] 13730584-n"