invalidate

Verb

• declare invalid
• make invalid for use
• show to be invalid
• take away the legal force of or render ineffective
  • "invalidate a contract"
• To make invalid. Especially applied to contract law.
• To make or declare (an argument, statement, or theory) unsound or erroneous; disprove.
• To render invalid; discredit.

Examples

• Telling an angry person to "calm down" can invalidate their feelings.
• The circuit court judge's ruling was invalidated by a superior judge.

Synonyms

annul, avoid, cancel, nullify, quash, vitiate, void, disprove, negate

Antonyms

validate