countermand

verb

Revoke or cancel (an order).

noun

An order revoking a previous one.

SYNONYMS

abolishabrogateannulavoidaxeback-pedal onbacktrack oncanceldeclare null and voiddisaffirmdisannuldischargeditchdo a U-turn ondo away withdumpinvalidateknock on the headnegatenullifyoverrideoverruleoverturnquashrecallrepealrescindretractreverserevokescrapset asidetake backundovacatevetovitiatewithdraw