Answer: thwart

AnswerCrossword Clue
THWARTFoil.
thwartto prevent or hinder
thwartto oppose successfully; prevent from accomplishing a purpose.
thwartto oppose or frustrate
THWARTPrevent from happening
THWARTImpede
THWARTDefeat
THWARTBaffle
THWARTFrustrate.
THWARTBaffle.
THWARTFoil
THWARTWreck the plans of
THWARTOppose successfully
THWARTFoil the plans of
THWARTStymie, as plans
THWARTStymie
THWARTKeep from happening
THWARTShort-circuit
THWARTFrustrate
THWARTBlock