voidable promise

A promise that one party may, under the law, declare void by reason of that party’s incapacity or mistake, or by reason of the fraud, breach, or other fault of the other party. [Cases: Contracts 98. C.J.S. Contracts §§ 137, 139–140, 145, 153–155, 157, 171, 173–174, 185, 188.]