invalid Definition
- 1not valid; not legally or factually binding
- 2a person made weak or disabled by illness or injury
Using invalid: Examples
Take a moment to familiarize yourself with how "invalid" can be used in various situations through the following examples!
Example
The contract was declared invalid due to a technicality.
Example
His argument was invalid because it was based on false assumptions.
Example
She became an invalid after a car accident left her paralyzed.
Example
The hospital ward was filled with invalids recovering from various injuries and illnesses.
invalid Synonyms and Antonyms
Synonyms for invalid
- void
- null
- unenforceable
- disabled
- handicapped
Antonyms for invalid
- valid
- legitimate
- able-bodied
Phrases with invalid
Example
His claim that all politicians are corrupt is an invalid argument.
Example
The contract was deemed an invalid contract because it was signed under duress.
invalid chair
a wheelchair used by a person who is disabled or unable to walk
Example
The hospital provided her with an invalid chair to help her move around.
Origins of invalid
from Latin 'invalidus', meaning 'weak'
Summary: invalid in Brief
The term 'invalid' [ɪnˈvælɪd] refers to something that is not legally or factually binding, such as an invalid contract or argument. It can also refer to a person who is disabled or weakened by illness or injury, known as an invalid. Synonyms include void, null, and unenforceable, while antonyms include valid and legitimate. The term can be used formally or informally, with examples including 'The contract was declared invalid due to a technicality' and 'She became an invalid after a car accident left her paralyzed.'