invalid

Adjective

• no longer valid
  • the license is invalid
    

• having no cogency or legal force
  • invalid reasoning
    
  • an invalid driver's license
    

Noun

• someone who is incapacitated by a chronic illness or injury

Verb

• injure permanently
  • He was disabled in a car accident
    

• force to retire, remove from active duty, as of firemen

Related words

• Synonyms: 
  shut-in , disable , incapacitate , handicap