stuffy      
adjective  disapproving uk/ˈstʌf.i/ us/ˈstʌf.i/
  (WITHOUT AIR)      
  (房间或建筑物)闷的,通风不畅的
A stuffy room or building is unpleasant because it has no fresh air.
  a stuffy office 空气污浊的办公室 
 It's really hot and stuffy in here - let's open the window. 这里又热又闷——我们把窗户打开吧。 
 The bedroom gets a little stuffy in the summer. 这个房间在夏天有点闷。 
   (FORMAL)      
  古板的,保守的,一本正经的
old-fashioned, formal, and boring
  Sir William had the ability to conduct proceedings in a dignified manner without ever becoming stuffy. 威廉爵士能够以庄重但毫不刻板的方式主持会议。 
 She is trying to promote a less stuffy image of librarians. 他在努力提升图书管理员的形象,想使之显得不那么古板。 
  US(鼻子)不通气的,堵塞的 
If your nose is stuffy or you have a stuffy nose, your nose is blocked with mucus, usually because you have a cold.