1. [ verb ] (law) declare invalid
Synonyms: quash void avoid nullify annul

"The contract was annulled" "avoid a plea"

Related terms: validate cancel break stet nullifier invalidator nothingness annulment
2. [ verb ] show to be invalid
Synonyms: nullify
Related terms: validate negate
3. [ verb ] of cheques or tickets
Synonyms: cancel
Related terms: score
4. [ verb ] (law) take away the legal force of or render ineffective;
Synonyms: vitiate void

"invalidateas a contract"

Related terms: validate change vitiation
Similar spelling:   invalidated