quashed

verb

Forcefully put an end to something, often a rebellion, rumour, or feeling.

"The government quickly quashed the uprising."

verb

Officially declared a legal decision or ruling invalid and no longer in effect.

"The High Court quashed the original verdict."

Thesaurus

Synonyms: avoid, nullify, void, quash, annul, invalidate, keep down, subdue, repress, subjugate, reduce

Antonyms: formalise, formalize, validate