At-Will Employment

Definition from Nolo’s Plain-English Law Dictionary

An employment arrangement in which the employee may quit at any time, and the employer may fire the employee for any reason that is not illegal. For example, an employer may fire an at-will employee for poor performance, to cut costs, or because the employer simply doesn't like the employee, but may not fire an at-will employee for discriminatory reasons, to retaliate against the employee for reporting harassment, or because the employee exercised a legal right.

Definition provided by Nolo’s Plain-English Law Dictionary.