(adv.) Diagonally.

across the grain against astraddle astride athwart athwartships bendwise beyond bias biased biaswise catercorner catercornered confronting contrariwise contrawise crisscross cross cross-grained crossway crossways crosswise diagonal facing fronting horseback in front of in opposition to kittycorner oblique obliquely on on horseback over against overthwart past sideways sidewise slant straddle straddle-legged straddleback thwart thwartly thwartways toward transversal transverse transversely traverse versus