invalid

Definition of invalid

Pronunciation

• (adjective) enPR: ĭnvă'lĭd, IPA: /ɪnˈvæl.ɪd/, SAMPA: /In"v{l.Id/
• Audio (US) ^[?]
• (noun) enPR: ĭn'vəlĭd, IPA: /ˈɪn.və.lɪd/, SAMPA: /"In.v@.lId/
• Audio (US) ^[?]

Adjective

invalid (comparative more invalid, superlative most invalid)

1. Not valid; not true, correct, acceptable or appropriate.

Antonyms

• valid

Noun

invalid (plural invalids)

1. One who is confined to home or bed due to illness, disability or injury
2. Any person with disability, e.g. invalid carriage

Usage notes

• The sense of a person confined to home or bed is considered politically incorrect by some.

Verb

to invalid (third-person singular simple present invalids, present participle invaliding, simple past and past participle invalided)

1. (British) To exempt from duty because of injury or ill health
   
   He was invalided home after the car crash.