invalid
Definition
- n. someone who is incapacitated by a chronic illness or injury
- v. force to retire, remove from active duty, as of firemen
- adj. having no cogency or legal force
- adj. no longer valid
Word forms
- Present participle
- invaliding
- Past tense
- invalided
- Third person singular
- invalids
- Past participle
- invalided
Example sentences
n.
The charity provides support for invalids who need special care.
a.
His argument was invalid because he did not provide any evidence.