What does impaired mean?
“Impaired” is an adjective meaning weakened, damaged, or reduced in ability, function, or effectiveness. It is commonly used with people whose vision, hearing, movement, memory, or other capacities are not functioning fully, as in “visually impaired” or “hearing impaired.” The word can also describe objects, systems, or processes that have been damaged or made less effective. Its tone is generally factual and less absolute than “disabled,” although it should not be used to obscure a person’s experience or preferred terminology. In formal writing, specific descriptions are often preferable, while the familiar expressions “visually impaired” and “hearing impaired” remain widely accepted and understandable. The term derives from “impair,” meaning to make less effective or functional.
Weakened, damaged, or reduced in ability, function, or effectiveness.
"The building has impaired access because of the damaged entrance."
Often used in established combinations such as “visually impaired” and “hearing impaired.”
To weaken, damage, or reduce the ability, function, or effectiveness of something.
"Dust and poor ventilation can impair the performance of the equipment."
This is the third-person singular simple present form of “impair.”
The word “impaired” comes from the idea of making something less effective: an impairment is a limitation in function, not merely a label for a person.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does impaired come from?
The adjective comes from the verb “impair,” which entered English through Old French empirier and ultimately Latin impedire, “to hinder” or “to prevent.” The Latin verb is related to “impede” and “impediment,” as well as “expedite,” which developed from the same Latin root. Over time, “impaired” came to describe a condition in which someone’s normal function or effectiveness has been reduced.
Related word forms
How impaired is actually used
The phrase “visually impaired” and “hearing impaired” are standard formal or public-facing expressions. In general use, “impaired” can sound more neutral and less categorical than “disabled,” but the preferred terminology depends on the person, context, and community.
Easily confused with impaired
“Impaired” can describe a partial reduction in ability or function, whereas “disabled” more commonly emphasizes a substantial or complete limitation affecting daily activities.
“Impaired” focuses on reduced function or effectiveness, while “handicapped” is an older term often used for a disadvantage or limitation and is now less common in many formal contexts.