To bring to an end the effect or existence of; cancel out:
To deny the truth or validity of
To do away with; wipe out; abolish, withdraw, etc.
To fail to follow suit in cards when required and able to do so.
To do away with; put an end to; annul:
To make negative:
To counterbalance or counteract the effect of; render ineffective.
To produce by offset printing.
To annul or put an end to (a court order, indictment, or court proceedings).
To weaken, injure, or impair, often by degrees or imperceptibly; sap:
(Obs.) To interpret; explain
To excrete body wastes.
To validate is to confirm, legalize, or prove the accuracy of something.
(English Law) To make profit of; to convert to one's own profit;—said especially of waste or common land appropriated by the lord of the manor.
The definition of permit is to allow something.
(Physics) To participate in annihilation. Used of particles and antiparticles.
To void or annul a judicial decision, order, and so on, usually on a motion to set aside by the party that is affected detrimentally and based upon some irregularity in the original proceeding.
To carry on; persist in:
To prevent from happening:
Find another word for invalidate. In this page you can discover 23 synonyms, antonyms, idiomatic expressions, and related words for invalidate, like: annul, refute, nullify, cancel, revoke, abolish, abrogate, negate, neutralize, offset and quash.