stuffier

/S T AH1 F IY0 ER0/
adjective
  1. 1

    Poorly ventilated; partially plugged.

    โ€œI canโ€™t smell very well today โ€“ I have a stuffy nose.โ€

  2. 2

    Stout; mettlesome; resolute.

  3. 3

    Angry and obstinate; sulky.

  4. 4

    Boring, uninteresting, over-formal, pompous, very conventional.

    โ€œThe stuffy professor droned on as the class lost interest.โ€

  5. 5

    Stout; sturdy.

Source: https://en.wiktionary.org/wiki/stuffier, https://en.wiktionary.org/wiki/stuffy