irrational的词源

英文词源

irrational (adj.)

late 15c., "not endowed with reason" (of beats, etc.); earlier (of quantities) "inexpressible in ordinary numbers" (late 14c.); from Latin irrationalis "without reason," from assimilated form of in- "not, opposite of" (see in- (1)) + rationalis "reason" (see rational). Meaning "illogical, absurd" is attested from 1640s. Related: Irrationally.

中文词源

irrational：不合逻辑的

ir-,不，非，rational,理智的，合逻辑的。

该词的英语词源请访问趣词词源英文版：irrational 词源，irrational 含义。

irrational：无理性的，不合理的

词根词缀： ir-不,非 + -rat-计算,思考 + -ion + -al