countermand (n.)
- abolishment
- abolition
- abrogation
- annulment
- baffle
- balk
- blast
- brave
- cancel
- cancellation
- challenge
- checkmate
- counter
- cross
- dash
- defeat
- dish
- elude
- foil
- invalidation
- nullification
- override
- recall
- recantation
- renege
- repeal
- rescission
- retraction
- reversal
- reverse
- revocation
- revoke
- ruin
- sabotage
- scotch
- spike
- spoil
- stump
- suspension
- thwart
- upset
- vacation
- void
- voidance
- voiding
- waiver
- withdrawal
- write-off
countermand (v.)
- abolish
- abrogate
- annul
- baffle
- balk
- blast
- brave
- cancel
- challenge
- checkmate
- circumvent
- confound
- confront
- contravene
- counter
- counteract
- cross
- dash
- defeat
- defy
- destroy
- discomfit
- disconcert
- discountenance
- dish
- disrupt
- elude
- flummox
- foil
- frustrate
- invalidate
- nonplus
- nullify
- override
- overrule
- perplex
- recall
- recant
- renege
- repeal
- rescind
- retract
- reversal
- reverse
- revoke
- ruin
- sabotage
- scotch
- spike
- spoil
- stonewall
- stump
- suspend
- thwart
- upset
- vacate
- vacation
- void
- waive
- withdraw