Verb

• S: (v) impair (make worse or less effective) "His vision was impaired"
• direct hypernym / inherited hypernym / sister term
• derivationally related form
• sentence frame
• S: (v) mar, impair, spoil, deflower, vitiate (make imperfect) "nothing marred her beauty"

Adjective

• S: (adj) impaired (diminished in strength, quality, or utility) "impaired eyesight"
• see also
• similar to
• antonym
• S: (adj) afflicted, impaired (mentally or physically unfit)