impairment

noun

1. 1

   the act of making something futile and useless (as by routine)

2. 2

   damage that results in a reduction of strength or quality

3. 3

   the occurrence of a change for the worse

4. 4

   the condition of being unable to perform as a consequence of physical or mental unfitness

   reading disability

   hearing impairment

5. 5

   a symptom of reduced quality or strength