Definitions for: Nullify

[v] make ineffective by counterbalancing the effect of; "Her optimism neutralizes his gloom"; "This action will negate the effect of my efforts"
[v] show to be invalid
[v] declare invalid; "The contract was annulled"; "avoid a plea"

Webster (1913) Definition: Nul"li*fy, v. t. [imp. & p. p. Nullified; p. pr. &
vb. n. Nullifying.] [L. nullificare; nullus none + -ficare
(in comp.) to make. See Null, a., and -fy.]
To make void; to render invalid; to deprive of legal force or

Such correspondence would at once nullify the
conditions of the probationary system. --I. Taylor.

Syn: To abrogate; revoke; annul; repeal; invalidate; cancel.
See Abolish.

Synonyms: annul, avoid, invalidate, invalidate, negate, neutralise, neutralize, quash, void

Antonyms: formalise, formalize, validate, validate

See Also: break, cancel, contradict, negate, stet, strike down, weaken

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