follow Dictionary.com

Denotation vs. Connotation

irrationality

[ih-rash-uh-nal-i-tee] /ɪˌræʃ əˈnæl ɪ ti/
noun, plural irrationalities for 2.
1.
the quality or condition of being irrational.
2.
an irrational, illogical, or absurd action, thought, etc.
Origin of irrationality
1560-1570
1560-70; irrational + -ity
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
Cite This Source
Examples from the Web for irrationality
Contemporary Examples
Historical Examples
  • But machines could not hope to encompass all the irrationality of Man.

    Mezzerow Loves Company Floyd L. Wallace
  • Elsmere's irrationality was an aversion to doctors, from the point of view of his own ailments.

    Robert Elsmere Mrs. Humphry Ward
  • Much that is absurd is found in man's religion, but the Tibetan form of it seemed to me the very ne plus ultra of irrationality.

  • This is the fifth example of irrationality and incommensurability.

    The Way To Geometry Peter Ramus
  • Philosophizing on the irrationality of old people, she proceeded to get enough scarcely-ripe peaches for a deep-dish pie.

    Missy Dana Gatlin
British Dictionary definitions for irrationality

irrationality

/ɪˌræʃəˈnælɪtɪ/
noun
1.
the state or quality of being irrational
2.
irrational thought, action, or behaviour
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
Cite This Source
Word Origin and History for irrationality
n.

1560s, from irrational + -ity.

Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source

Word of the Day

Difficulty index for irrationality

Few English speakers likely know this word

Word Value for irrationality

16
17
Scrabble Words With Friends