Difficult Words : Mortify, Morose, Moribund and Mundane
Moribund (MAWR uh BUND) adj: dying
The steel industry in this country was moribund a few years ago, but now it seems to be reviving somewhat.
The senator's political ideas were moribund. No one thinks that way anymore.
A dying creature could be said to be moribund too, although this word is usually used in connection with things that die only figuratively.