stuffy /ˈstʌfi/adjective 6noun 1forms 3 adjective6 •Poorly ventilated; partially plugged.I can’t smell very well today – I have a stuffy nose.Let’s go outside – it’s getting stuffy in here. •Uncomfortably warm without sufficient air circulation.Abby Jimenez Like my life was a stuffy room, and you’re the breeze that came in when the window opened. •Boring, old-fashioned, uninteresting, over-formal, pompous, very conventional.The stuffy professor droned on as the class lost interest. •(US) Angry and obstinate; sulky. •Stout; mettlesome; resolute. •(Scotland) Stout; sturdy. noun1 •(US, informal) Synonym of stuffed toy. formsstuffies · stuffier · stuffiest