invalid coupon
A legal term referring to a coupon or ticket that has lost its validity, often due to expiration or cancellation.
Expired invalid coupons cannot be used.
無効 is a general term for invalidity, while 欠缺利札 specifically refers to an invalid coupon or ticket.
Compound of 欠缺 (けんけつ, 'lack' or 'defect') and 利札 (りさつ, 'coupon' or 'interest ticket'). The exact historical derivation is uncertain; the term is used in legal contexts.