他的一生充满罪恶，死前仍未被救赎。

His life was full of sin, and he died ___unredeemed.

这张优惠券还未使用，月底就到期了。

This ___unredeemed coupon will expire at the end of the month.

他过去的错误至今仍是一个未被弥补的遗憾。

His past mistakes remain an ___unredeemed regret to this day.