What does incapacitated mean?
Incapacitated describes a person who cannot act, function, or make decisions normally because of an impairment such as illness, injury, intoxication, or mental disturbance. It is often used in medical and emergency situations to emphasize that someone’s condition prevents normal activity or judgment. In legal contexts, it can refer to a person whose impairment is serious enough to affect the management of personal affairs or the reliability of important decisions. The word is more specific and more formal than simply unable, and it often suggests a temporary or situational limitation rather than a permanent lack of skill or capacity. Related expressions include legally incapacitated, mentally incapacitated, and physically incapacitated.
adjectiveUnable to act, function, or make decisions normally because of illness, injury, intoxication, or another impairment. In legal contexts, it can describe a person who is unable to manage personal affairs because of a serious impairment.
- Unable to act, function, or make decisions normally because of physical or mental impairment.
- Unable, because of a serious impairment, to manage personal affairs or make legally significant decisions.
"The injured hiker was incapacitated and had to wait for rescue."
"The injured hiker was incapacitated and had to wait for rescue."
"The court determined that the witness was incapacitated and could not give reliable testimony that day."
In medical and legal language, incapacitated describes not merely being unwell, but being unable to perform the decisions or actions that ordinary capacity allows.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does incapacitated come from?
Incapacitated developed from the Latin root capacitas, meaning capacity or ability, combined with the prefix in-, meaning not or without. The related Latin verb incapacitare meant to make incapable, and English developed the forms incapacitate and incapacitated in the early modern period. Its cognates include capacity, capable, capacious, and capacitate, all of which share the same underlying idea of ability or holding capacity.
Related word forms
How incapacitated is actually used
The word is formal and especially common in medical, legal, and public-safety contexts. It can sound more clinical or euphemistic than words such as unable or disabled, while still carrying a clear implication of serious impairment.
Easily confused with incapacitated
Incapable generally describes a person or thing that lacks the ability or capacity to do something, whereas incapacitated usually describes someone rendered unable to act or function by a particular impairment.