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单词 irrational
释义

irrational

[ ih-rash-uh-nl ]
/ ɪˈræʃ ə nl /
SEE SYNONYMS FOR irrational ON THESAURUS.COM

adjective

noun

Mathematics. irrational number.

Origin of irrational

First recorded in 1425–75; late Middle English word from Latin word irratiōnālis.See ir-2, rational

SYNONYMS FOR irrational

3 unreasonable, ridiculous; insensate.
SEE SYNONYMS FOR irrational ON THESAURUS.COM

OTHER WORDS FROM irrational

Words nearby irrational

irradiance, irradiant, irradiate, irradiation, irradicable, irrational, irrationalism, irrationality, irrationalize, irrational number, Irrawaddy
Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for irrational

British Dictionary definitions for irrational

irrational
/ (ɪˈræʃənəl) /

adjective

inconsistent with reason or logic; illogical; absurd
incapable of reasoning
maths
  1. not rational
  2. (as noun)an irrational
prosody (in Greek or Latin verse)
  1. of or relating to a metrical irregularity, usually the occurrence of a long syllable instead of a short one
  2. denoting a metrical foot where such an irregularity occurs

Derived forms of irrational

irrationally, adverbirrationalness, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for irrational

irrational
[ ĭ-răshə-nəl ]

adj.

Not rational; marked by a lack of accord with reason or sound judgment.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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