Dictionary and Thesaurus

Definition of Annul

• (a.) To reduce to nothing; to obliterate.
• (a.) To make void or of no effect; to nullify; to abolish; to do away with; -- used appropriately of laws, decrees, edicts, decisions of courts, or other established rules, permanent usages, and the like, which are made void by component authority.

Synonyms of Annul

• Invalidate
• Quash
• Void
• Avoid
• Nullify
• Revoke
• Lift
• Countermand
• Reverse
• Repeal
• Overturn
• Rescind
• Vacate

Antonyms of Annul

• Validate

Homophones of Annul

• Anil
• Annal