What does perturbed mean?
“Perturbed” describes a person who has been made anxious, unsettled, or emotionally agitated, as in “The sudden news perturbed him.” It can also describe something disturbed from its normal or expected condition, especially in technical writing: a perturbed system may be one slightly displaced from equilibrium. As the past tense and past participle of “perturb,” it means to disturb or unsettle. The word is common in formal English and generally conveys more intensity than “worried,” though it does not necessarily imply panic or outrage. Its broader technical sense is useful in physics, mathematics, and related fields, where a perturbation is a small change around a stable state. Overall, “perturbed” links emotional disturbance with the broader idea of disruption, making it a precise word for anything shaken out of calm or balance.
Mentally or emotionally unsettled, troubled, or agitated; also, disturbed from a normal or stable state.
"The negotiations continued despite the minister’s perturbed reaction."
The technical use refers to a departure from an expected or stable state.
To disturb or unsettle, especially someone’s mind or emotions.
"The letter perturbed her deeply."
This is the past tense and past participle of “perturb.”
Perturbed shares its ancient roots with disturb and turbulence: all trace back to Latin ideas of disorder and confusion.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does perturbed come from?
The word comes through French from Latin perturbare, meaning “to disturb” or “disorder.” The Latin verb combined the intensive prefix per- with turbare, itself associated with turba, meaning confusion, disorder, or a crowd. English later developed both “perturb” and the adjective “perturbed,” which became common in emotional, physical, and scientific contexts.
How perturbed is actually used
In ordinary use, “perturbed” often sounds somewhat formal and suggests a degree of emotional agitation greater than simple concern. In scientific and technical writing, it refers more broadly to any displacement from an equilibrium or reference state.
Easily confused with perturbed
Perturbed emphasizes emotional disturbance or agitation, whereas perplexed emphasizes confusion or puzzlement.