What part of speech is impaired?

"Impaired" can be several parts of speech depending on its use in a sentence:

* Adjective: Describing a condition or ability that is weakened or damaged.

* Example: "He has impaired vision."

* Verb (past participle): Used to describe something that has been weakened or damaged.

* Example: "His hearing was impaired by the loud noise."

* Verb (past tense): Describing an action of weakening or damaging something.

* Example: "The accident impaired his ability to walk."

Therefore, the part of speech of "impaired" depends on the context of the sentence.