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irritable

[ir-i-tuh-buh l] /ˈɪr ɪ tə bəl/
adjective
1.
easily irritated or annoyed; readily excited to impatience or anger.
2.
Physiology, Biology. displaying irritability.
3.
Pathology. susceptible to physical irritation.
4.
Medicine/Medical. abnormally sensitive to a stimulus.
Origin
1655-1665
1655-65; < Latin irrītābilis, equivalent to irrītā(re) to irritate + -bilis -ble
Related forms
irritableness, noun
irritably, adverb
nonirritable, adjective
nonirritableness, noun
nonirritably, adverb
unirritable, adjective
unirritably, adverb
Synonyms
1. snappish, petulant, resentful. Irritable, testy, touchy, irascible are adjectives meaning easily upset, offended, or angered. Irritable means easily annoyed or bothered, and it implies cross and snappish behavior: an irritable clerk, rude and hostile; Impatient and irritable, he was constantly complaining. Testy describes the same kind of behavior or response, particularly to minor annoyances: always on edge, testy and sharp in response; testy and petulant, resenting any interruption. Touchy emphasizes oversensitivity and readiness to take offense, even when none is intended: especially touchy about any reference to obesity. Irascible means habitually angry or easily aroused to anger: an irascible tyrant, roaring at employees for the slightest error.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for un-irritable

irritable

/ˈɪrɪtəbəl/
adjective
1.
quickly irritated; easily annoyed; peevish
2.
(of all living organisms) capable of responding to such stimuli as heat, light, and touch
3.
(pathol) abnormally sensitive
Derived Forms
irritability, noun
irritableness, noun
irritably, adverb
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 un-irritable

irritable

adj.

1660s, from French irritable and directly from Latin irritabilis "easily excited," from irritare (see irritate). Related: Irritably.

Online Etymology Dictionary, © 2010 Douglas Harper
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un-irritable in Medicine

irritable ir·ri·ta·ble (ĭr'ĭ-tə-bəl)
adj.

  1. Capable of reacting to a stimulus.

  2. Abnormally sensitive to a stimulus.

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