nullify

• nullify

nullify

Verb

declare invalid; "The contract was annulled"; "void a plea"

Synonyms:

• invalidate
• annul
• quash
• void
• avoid
• nullify

Verb

show to be invalid

Synonyms:

• invalidate
• nullify

Verb

make ineffective by counterbalancing the effect of; "Her optimism neutralizes his gloom"; "This action will negate the effect of my efforts"

Synonyms:

• neutralize
• neutralise
• nullify
• negate