Impairment
WordNet
noun
(1) The act of making something futile and useless (as by routine)
(2) Damage that results in a reduction of strength or quality
(3) The occurrence of a change for the worse
(4) The condition of being unable to perform as a consequence of physical or mental unfitness
"Reading disability"
"Hearing impairment"
(5) A symptom of reduced quality or strength
WiktionaryText
Noun
- The result of being impaired; a deterioration or weakening; a disability or handicap; an inefficient part or factor.