1. (prep.) Across; from side to side of; across the direction or course of; as, a fleet standing athwart our course\.

2. (adv.) Across, especially in an oblique direction; sidewise; obliquely.

3. (adv.) Across the course; so as to thwart; perversely.

across across the grain adverse to against against the grain against the tide against the wind at cross-purposes at cross-purposes with at daggers at daggers drawn at issue at odds at variance at war with athwartships bendwise beyond bias biased biaswise catercorner catercornered con contra contrariwise contrawise counter counter to crisscross cross cross-grained crossway crossways crosswise dead against diagonal eyeball-to-eyeball in conflict with in confrontation in hostile array in opposition in opposition to kittycorner oblique obliquely opposed to over overthwart sideways sidewise slant thwart thwartly thwartways transversal transverse transversely traverse up in arms versus vis-a-vis with crossed bayonets