without impeachment of waste.(Of a tenant) not subject to an action for waste; not punishable for waste. • This clause is inserted in a lease to give a tenant the right to take certain actions (such as cutting timber) without being held liable for waste. But a tenant cannot abuse the right and will usu. be held liable for maliciously committing waste. — Also termed absque impetitione vasti. [Cases: Landlord and Tenant  55(2). C.J.S. Landlord and Tenant § 261.]
[Blacks Law 8th]