defunct

中文： 不再存在的、停用的、荒废的

1. No longer in use or active, nor expected to be again.
2. No longer in business or service, nor expected to be again; out of business.
3. Specifically, of a process: having terminated but not having been reaped (by its parent or an inheritor), and thus still occupying a process slot. See also zombie, zombie process.
4. (of a language) No longer spoken.