Meaning & Definition of word "Invalid"

Invalid

/ɪnˈvæl.ɪd/

noun:

  • 1. A person who is unable to care for themselves due to chronic illness or disability.
    • Example: The organization is dedicated to supporting invalids in need of assistance.

adjective:

  • 1. Not valid; having no force, weight, or cogency.
    • Example: The contract was deemed invalid due to a lack of signatures.
  • 2. Not acceptable according to the law or rule.
    • Example: Her application was rejected because it contained invalid information.
  • 3. Incapable of being defended or justified.
    • Example: The argument presented was considered invalid and unconvincing.

Etymology

From Latin 'invalidus', meaning 'weak, feeble'.

Common Phrases and Expressions

invalid argument:

An argument that is logically unsound.

invalid claim:

A claim that is not supported by evidence.

invalid data:

Data that is incorrect or not usable.

Related Words

valid:

Having legal force or effect.

invalidate:

To make something invalid.

validation:

The process of confirming something is valid.

Slang Meanings of invalid

Meaning: Something that is not accepted as true or real.

Example Sentence: Her excuses were totally invalid, no one believed them.

Meaning: A term used in gaming to refer to a move or action that cannot be performed.

Example Sentence: That action is invalid during this phase of the game.