Definitions

1. verb

to make something imperfect or less effective

“The rainstorm impaired the visibility on the road.”

2. noun

a physical or mental disability

“The charity helps people with impairments.”

3. verb

to reduce the value or quality of something

“The economic downturn impaired the company’s stock.”

4. verb

to weaken or make less effective

“The lack of sleep impaired her concentration.”