1. The occurrence of a change for the worse
   - damage, harm 
2. A symptom of reduced quality or strength
   - deterioration 
3. The condition of being unable to perform as a consequence of physical or mental unfitness
   "hearing impairment"
   - disability, disablement, handicap 
4. Damage that results in a reduction of strength or quality 
5. The act of making something futile and useless (as by routine)
   - stultification, constipation, deadening

Derived forms: impairments

See also: impair

Type of: alteration, change, damage, debasement, decay, degradation, harm, hurt, modification, scathe, softness, unfitness

Encyclopedia: Impairment

• peace of mind
• Peace of Westphalia
• peace offering
• peace officer
• peace pipe
• peace process
• peace treaty
• peace-loving
• peaceable
• peaceableness
• peaceably
• peaceful
• peacefully
• peacefulness
• peacekeeper
• peacekeeping
• peacekeeping mission
• peacekeeping operation
• peacemaker
• peacenik
• peacetime
• peach
• peach bell
• peach bells
• peach blight