| invalidate | (v) declare invalid, Syn. nullify, annul, void, avoid, quash, Ant. validate, Example: The contract was annulled; void a plea |
| invalidate | (v) show to be invalid, Syn. nullify, Ant. validate |
| invalidate | (v) take away the legal force of or render ineffective, Syn. vitiate, void, Ant. validate, Example: invalidate a contract |
| invalidator | (n) an official who can invalidate or nullify, Syn. voider, nullifier, Example: my bank check was voided and I wanted to know who the invalidator was |
| Invalidate | v. t. |
| invalidated | adj. deprived of legal force. |
| invalidating | adj. tending to invalidate or prove false. |
| Invalidation | n. The act of inavlidating, or the state of being invalidated. [ 1913 Webster ] So many invalidations of their right. Burke. [ 1913 Webster ] |