1. across from side to side; transversely
Usage: formal
2. in opposition to; contrary to
Usage: formal

1. from side to side; crosswise
Usage: formal

Examples

• The fallen tree lay athwart the path, blocking our way.
• She placed the board athwart the opening to seal it.
• His plans ran athwart her wishes for the project.
• The proposal went athwart company policy.
• The ship was positioned athwart the current.
• The beam stretched athwart the entire width of the room.