"impaired" in the verb sense
1. impair
make worse or less effective
"His vision was impaired"
2. mar, impair, spoil, deflower, vitiate
make imperfect
"nothing marred her beauty"
"impaired" in the adjective sense
1. impaired
diminished in strength, quality, or utility
"impaired eyesight"
2. afflicted, impaired
mentally or physically unfit
Source: WordNet® (An amazing lexical database of English)
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