IPA: /ɪmˈpɛrd/
KK: /ɪmˈpɛrd/
Weakened or damaged in some way, often referring to senses, abilities, or health.
The impaired vision made it difficult for him to read the small print.
A group of individuals who have a physical or mental disability.
The organization provides support for the impaired in our community.
Impaired is formed from "im-" (meaning not) and "pair" (from Latin "parare", meaning to prepare or make ready). The word describes a state of being not fully prepared or functioning, indicating a reduction in quality or ability.
Think of 'not' ('im-') being able to 'prepare' ('parare') something fully — that's why impaired means something is not functioning at its best.