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.
How wildfire smoke can endanger your health Inhaling smoke can result in a variety of ailments, from minor irritability to more serious problems like respiratory and cardiovascular disorders. Janet Loehrke, USA Today, 5 June 2025 Hunger and fatigue can often amplify irritability for many, making patience even harder to maintain. Mark Travers, Forbes.com, 3 June 2025 Medication: May be used to address co-occurring conditions such as anxiety, irritability, or sleep issues. Lindsay Curtis, Verywell Health, 30 May 2025 Whatever the culprit is for disrupting your sleep, not getting enough shut-eye can trigger a host of issues such as irritability, anxiety, moodiness, weight fluctuations, and a weakened immune system, among others. Elizabeth Ayoola, Essence, 27 May 2025 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

Browse Nearby Words

Cite this Entry

“Irritability.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/irritability. Accessed 9 Jun. 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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