in·va·lid
1 (ĭńvə-lĭd)
[From invalid2 (influenced by French invalide, sickly, infirm).]
noun
- One who is incapacitated by a chronic illness or disability.
adjective
- Incapacitated by illness or injury.
- Of, relating to, or intended for invalids.
transitive verb: -lid·ed, -lid·ing, -lids.
- To incapacitate physically.
- Chiefly British To release or exempt from duty because of ill health: “I was not quite sick enough to be invalided out, even though I was of no more use” (Mary Lee Settle)
in·val·id
2 (ĭn-văĺĭd)
[Latin invalidus, weak, in-, not; see in–1, + validus, strong (from valēre, to be strong; see wal-).]
adjective
- Not legally or factually valid; null: an invalid license.
- Falsely based or reasoned; faulty: an invalid argument.
derivatives
- ińva·lid́i·ty
- noun
- in·vaĺid·ly
- adverb