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[moo-dee] /ˈmu di/
adjective, moodier, moodiest.
given to gloomy, depressed, or sullen moods; ill-humored.
proceeding from or showing such a mood:
a moody silence.
expressing or exhibiting sharply varying moods; temperamental.
Origin of moody
before 900; Middle English mody, Old English mōdig. See mood1, -y1
Related forms
moodily, adverb
moodiness, noun
unmoody, adjective
1. sulky, morose, brooding; glowering. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for moodiness
Contemporary Examples
Historical Examples
  • Venner first shook off his moodiness and followed her into the brush; and Tomlin was close behind him.

    The Pirate Woman Aylward Edward Dingle
  • Philip straightens himself, and his moodiness flies from him.

    Molly Bawn Margaret Wolfe Hamilton
  • Paul sat without animation until Greta set herself to bewitch him out of his moodiness.

    A Son of Hagar Sir Hall Caine
  • On top of this moodiness a violence of temper, a stewing, cursing, fuming about.

    Erik Dorn Ben Hecht
  • But nothing like this moodiness had ever come upon him before.

    The Last Chronicle of Barset Anthony Trollope
  • Yet Matty had been of service and perhaps her moodiness was caused by a suppressed affection.

    Erik Dorn Ben Hecht
  • As he warmed in the dance, however, his moodiness and taciturnity gave way.

    Trevethlan: Volume 1 William Davy Watson
British Dictionary definitions for moodiness


adjective moodier, moodiest
sullen, sulky, or gloomy
temperamental or changeable
Derived Forms
moodily, adverb
moodiness, noun


Dwight Lyman. 1837–99, US evangelist and hymnodist, noted for his revivalist campaigns in Britain and the US with I. D. Sankey
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
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Word Origin and History for moodiness

Old English modignes "pride, passion, anger;" see moody + -ness. Meaning "condition of being moody" is from 1858.



Old English modig "brave, proud, high-spirited, impetuous, arrogant," from Proto-Germanic *modago- (cf. Old Saxon modag, Dutch moedig, German mutig, Old Norse moðugr); see mood (1) + -y (2). Meaning "subject to gloomy spells" is first recorded 1590s (via a Middle English sense of "angry").

Online Etymology Dictionary, © 2010 Douglas Harper
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moodiness in Medicine

moody mood·y (mōō'dē)
adj. mood·i·er, mood·i·est

  1. Given to frequent changes of mood; temperamental.

  2. Subject to periods of depression; sulky.

  3. Expressive of a mood, especially a sullen or gloomy mood.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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