thwarts

noun

Plural of 'thwart': cross-benches or seats in a boat for rowing.

"The crew sat on the thwarts to row."

verb

Prevents someone from accomplishing something or opposes a plan or effort.

"Bad weather often thwarts our picnic plans."

Thesaurus

Synonyms: cross thwart, spoil, bilk, cross, queer, scotch, frustrate, baffle, foil