ditcher

Example:His abandonment of the project was surprising given its potential.

Definition:The act of abandoning something or someone, the complete desertion or giving up of an idea, a place, or a person.

Example:She made a clean leaving from the meeting room without saying goodbye.

Definition:The action of going away or departing from a place or a person.

Example:His desertion from the team was a shock to everyone.

Definition:The act of abandoning one's duty, post, or cause, especially in time of danger or difficulty.