Correct

发闷

/ fà mēn / 
Strokes

Example

As an Adjective

close; stuffy; oppressive; stifling

1
Jīntiān
今天
tiānqì
天气
fà
发
mēn
闷
  
。

The weather is close today. / It's stuffy today.

As an Adjective

(of a sound) muffled

2
Fàmēn
发闷
de
的
léishēng
雷声

muffle of thunder