Definition of stuffy adjective from the Oxford Advanced American Dictionary

     

    stuffy

     adjective
    adjective
    NAmE//ˈstʌfi//
     
    (stuffier, stuffiest)
     
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  1. 1(of a building, room, etc.) warm in an unpleasant way and without enough fresh air a stuffy room It gets very hot and stuffy in here in summer.
  2. 2(informal) (disapproving) very serious, formal, boring, or old-fashioned a stuffy, formal family plain, stuffy clothes
  3. 3 if you have a stuffy nose, your nose is blocked because you have a cold
 
noun [uncountable]
See the Oxford Advanced Learner's Dictionary entry: stuffy