invalid

a. 无效的,伤残的
n. 病人,残疾者

He never fully recovered, and had to spend the rest of his life as an invalid.

他没能完全康复，于是不得不成了一名残疾者度过余生。

This ticket has passed its expiration date, and so it is now invalid.

这张票已过了有效期，现在作废了。