irritability

noun

ir·​ri·​ta·​bil·​i·​ty ˌir-ə-tə-ˈbi-lə-tē How to pronounce irritability (audio)
plural irritabilities
1
: the quality or state of being irritable: such as
a
: quick excitability to annoyance, impatience, or anger : petulance
b
: abnormal or excessive excitability of an organ or part of the body
2
: the property of protoplasm and of living organisms that permits them to react to stimuli

Examples of irritability in a Sentence

the librarian's well-known irritability makes students hesitant to ask questions
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Be aware that non-methylated B vitamins have the potential to cause these same side effects — which include anxiety, agitation, irritability, headaches, nausea, neuropathy, insomnia, and achiness. Allison Futterman, Discover Magazine, 7 Jan. 2025 Symptoms may include nightmares and flashbacks to the event, trouble sleeping and feelings of isolation, irritability and guilt. George Monastiriakos, Newsweek, 30 Dec. 2024 Common symptoms include difficulty focusing, lack of energy, irritability, and a general sense of apathy toward your work. Benjamin Laker, Forbes, 16 Dec. 2024 That can include irritability, nausea, dizziness, vomiting, nightmares, headache, and suicide ideations. Korin Miller, Health, 11 Dec. 2024 See all Example Sentences for irritability 

Word History

First Known Use

1755, in the meaning defined at sense 2

Time Traveler
The first known use of irritability was in 1755

Dictionary Entries Near irritability

Cite this Entry

“Irritability.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/irritability. Accessed 18 Jan. 2025.

Kids Definition

irritability

noun
ir·​ri·​ta·​bil·​i·​ty ˌir-ət-ə-ˈbil-ət-ē How to pronounce irritability (audio)
plural irritabilities
1
: the quality or state of being irritable
especially : readiness to become annoyed or angry
2
: the property of living tissue and living things that permits them to react to stimuli

Medical Definition

irritability

noun
ir·​ri·​ta·​bil·​i·​ty ˌir-ət-ə-ˈbil-ət-ē How to pronounce irritability (audio)
plural irritabilities
1
: the property of protoplasm and of living organisms that permits them to react to stimuli
2
a
: quick excitability to annoyance, impatience, or anger
b
: abnormal or excessive excitability of an organ or part of the body (as the stomach or bladder)

More from Merriam-Webster on irritability

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