Synonyms and Antonyms for annul

Synonyms:

• invalidate
• void
• nullify
• strike down
• quash
• break
• stet
• cancel
• avoid

Antonyms:

• validate
• correct
• obverse
• head
• forward

Synonyms:

• renege on
• revoke
• reverse
• go back on
• countermand
• cancel
• strike down
• lift
• renege
• vacate
• renegue on
• overturn
• repeal
• rescind

Antonyms:

• falsify
• synchronize
• consecrate
• synchronise
• stay