Irrational



GRE

解释

GRE 红宝书

• adj. 荒谬的
• ［英］ adj. 荒谬的 ( illogical or absurd)
• ［记］ ir ( 不) +rational ( 理性的) -> 没有理性的

Webster Collegiate

I. adjective

• Etymology: Middle English, from Latin irrationalis, from in- + rationalis rational
• Date: 14th century
• not rational: as
  • a.
    • (1) not endowed with reason or understanding
    • (2) lacking usual or normal mental clarity or coherence
  • b. not governed by or according to reason <irrational fears>
  • c. Greek & Latin prosody
    • (1) of a syllable having a quantity other than that required by the meter
    • (2) of a foot containing such a syllable
  • d.
    • (1) being an irrational number <an irrational root of an equation>
    • (2) having a numerical value that is an irrational number <a length that is irrational>
• ? irrationality noun
• ? irrationally adverb

II. noun

• Date: 1646
• 1. an irrational being
• 2. irrational number

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