situated or placed across something else; transverse; oblique.-fig.: perverse; crossgrained.-thwartly; obliquely; transversely; athwart.-across; athwart.-a seat in an open boat reaching from one side to the other, or athwart the boat.-to move across or counter to; to cross; as, an arrow thwarts the air.-to cross, as a purpose; to oppose; to run counter to; to contravene; hence, to frustrate or defeat.-to move or go in an oblique or crosswise manner.-hence, to be in opposition; to clash.