Definition of stuffy adjective from the Oxford Advanced Learner's Dictionary

     

    stuffy

     adjective
    adjective
    BrE BrE//ˈstʌfi//
     
    ; NAmE NAmE//ˈstʌfi//
     
    (stuffier, stuffiest) Boredom
     
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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 See related entries: Boredom
  3. 3(especially North American English) if you have a stuffy nose, your nose is blocked because you have a cold
  4. Extra examples It gets really stuffy in here in summer. My parents are being a bit stuffy about me living in London on my own. She had always seemed so stuffy and plain. The room was stuffy with the smell of socks and sweat.
See the Oxford Advanced American Dictionary entry: stuffy