irritate
Americanverb (used with object)
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to excite to impatience or anger; annoy.
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Physiology, Biology. to excite (a living system) to some characteristic action or function.
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Pathology. to bring (a body part) to an abnormally excited or sensitive condition.
verb (used without object)
verb
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to annoy or anger (someone)
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(tr) biology to stimulate (an organism or part) to respond in a characteristic manner
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(tr) pathol to cause (a bodily organ or part) to become excessively stimulated, resulting in inflammation, tenderness, etc
Related Words
Irritate, exasperate, provoke mean to annoy or stir to anger. To irritate is to excite to impatience or angry feeling, often of no great depth or duration: to irritate by refusing to explain an action. To exasperate is to irritate to a point where self-control is threatened or lost: to exasperate by continual delays and excuses. To provoke is to stir to a sudden, strong feeling of resentful anger as by unwarrantable acts or wanton annoyance: to tease and provoke an animal until it attacks.
Other Word Forms
- irritator noun
Etymology
Origin of irritate
1525–35; < Latin irrītātus, past participle of irrītāre to arouse to anger, excite, aggravate, equivalent to irritā- v. stem + -tus past participle suffix
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Tina says there's also a fine line between refreshing and overdoing it as "very aggressive ice exposure can irritate sensitive skin or trigger rosacea, so keep it gentle".
From BBC • Feb. 16, 2026
In larger amounts, it can also irritate the body, sometimes leading to skin rashes or digestive discomfort.
From Science Daily • Jan. 17, 2026
The justices have already dealt with the contraceptive mandate and the Little Sisters twice, and this latest challenge seems designed to irritate them.
From The Wall Street Journal • Dec. 22, 2025
At a retrospective of his work, Gustav refers to his crew as his “family,” which would irritate his kids if they’d bothered to attend.
From Los Angeles Times • Nov. 6, 2025
For no reason but to irritate me, we get a heat wave in December.
From "The Help" by Kathryn Stockett
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
