Invalid
/ɪnˈvæl.ɪd/
Synonyms
- ineffective
- null
- unacceptable
- void
- unsubstantiated
Slang Meanings
Something that is not accepted as true or real.
Her excuses were totally invalid, no one believed them.
A term used in gaming to refer to a move or action that cannot be performed.
That action is invalid during this phase of the game.