- catacorner, cata-cornered, catercorner, cater-cornered, catty-corner, catty-cornered, kitty-corner, kitty-cornered - slanted across a polygon on a diagonal line; "set off in a catty-corner direction across the vacant lot"
Antonym: parallel (indirect, via perpendicular, oblique)
Antonym: perpendicular (indirect, via oblique, parallel)