stuffiness
noun /ˈstʌfinəs/
  /ˈstʌfinəs/
[uncountable]- (informal, disapproving) the fact of being very serious, formal, boring or old-fashioned
- There's no stuffiness about him.
 
 - the fact of being warm in an unpleasant way and without enough fresh air
- The cool sea air felt good after the stuffiness indoors.
 
 - (especially North American English) the fact of having a blocked nose because you have a cold
- nasal stuffiness