What does irritate mean?
Irritate is a transitive verb with several related meanings. Most commonly, it describes causing someone to feel annoyed, frustrated, or slightly angry, as when a persistent sound or repeated interruptions irritate a person. It can also refer to producing an uncomfortable physical reaction, such as when a fabric irritates the skin or a substance irritates the eyes and throat. A less common but related sense is the stimulation of an organ or tissue, especially in technical and medical contexts. The word is used in both formal and informal English and can range from mild annoyance to a stronger reaction. Its related forms include 'irritated', 'irritating', and 'irritation', while 'irritant' describes something that causes irritation. When describing a persistent interpersonal problem, 'irritate' usually focuses on the emotional response, whereas 'aggravate' focuses on making an underlying difficulty worse.
To make someone annoyed, frustrated, or slightly angry.
"The notification sound irritated her every few minutes."
This is the most common everyday sense and is often used with a person, behavior, situation, or recurring stimulus.
To cause physical irritation or discomfort in the skin, eyes, throat, or another part of the body.
"The wool sweater irritated the baby's sensitive skin."
Common in medical, dermatological, product, and consumer contexts.
To stimulate an organ or tissue into an excessive or abnormal response.
"The substance irritates the lining of the respiratory tract."
This more technical sense is often used in medicine and biology.
The word irritate comes from the Latin irritare, which meant to provoke or stimulate—a fitting root for a feeling that refuses to be ignored.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of irritate
The word comes from Latin irritare, meaning 'to provoke, stimulate, or make angry'. English borrowed the term in the late 16th century, when it was used both for provoking an emotional response and for physically stimulating or troubling a bodily part. Its later development preserved both senses. The Latin root also underlies related English words such as 'irritant', 'irritable', and 'irritation'.
Related word forms
How irritate is actually used
In everyday use, 'irritate' is often milder than 'enrage' or 'infuriate', though the intensity depends on context. The physical sense is common in medical and product descriptions.
Easily confused with irritate
Irritate usually means to make someone annoyed or physically uncomfortable, whereas aggravate means to make a problem or situation worse.