When drinking alcohol causes your reflexes to become slower, this is an example of how drinking impairs your reflexes.
An injury that impaired my hearing; a severe storm impairing communications.
Origin of impair
From American Heritage Dictionary of the English Language, 5th Edition
- From Old French empeirier, variant of empirier (“to worsen”), from Vulgar Latin *impēiōrō, from im- + Late Latin pēiōrō (“to make worse”), from peior (“worse”), comparative of malus (“bad”).