thwart (n.)
- baffle
- balk
- beat
- bench
- bias
- blast
- block
- brace
- brave
- buffer
- cancel
- challenge
- check
- checkmate
- counter
- counterbalance
- countermand
- crisscross
- cross
- crossing
- crossway
- curb
- dash
- defeat
- diagonal
- dish
- disillusion
- elude
- foil
- negative
- oblique
- offset
- queer
- ruin
- sabotage
- scotch
- slant
- spike
- spoil
- stop
- stump
- style
- stymie
- tease
- traverse
- undo
- upset
- vitiate
- void
thwart (v.)
- across
- annul
- baffle
- balk
- beat
- bench
- bias
- bilk
- blast
- block
- brace
- brave
- buffer
- cancel
- challenge
- check
- checkmate
- circumvent
- confound
- confront
- contravene
- counter
- counteract
- counterbalance
- countermand
- crisscross
- cross
- curb
- dash
- defeat
- defy
- destroy
- disappoint
- discomfit
- disconcert
- discountenance
- dish
- disillusion
- disrupt
- dissatisfy
- elude
- flummox
- foil
- frustrate
- hinder
- impede
- invalidate
- negate
- negative
- neutralize
- nonplus
- nullify
- obstruct
- offset
- oppose
- perplex
- queer
- restrain
- ruin
- sabotage
- scotch
- short-circuit
- slant
- spike
- spoil
- stonewall
- stop
- stultify
- stump
- style
- stymie
- tantalize
- tease
- traverse
- undo
- upset
- vitiate
- void
