Furnishing little delight, spirit, or variety; uninteresting; tedious; cheerless; gloomy; melancholy; depressing; as, a dull story or sermon; a dull occupation or period; hence, cloudy; overcast; as, a dull day.
To deprive of sharpness of edge or point.
To make dull, stupid, or sluggish; to stupefy, as the senses, the feelings, the perceptions, and the like.
To render dim or obscure; to sully; to tarnish.
To deprive of liveliness or activity; to render heavy; to make inert; to depress; to weary; to sadden.
As a real person, he wouldn't last a minute, would he? But drama is about imperfection. And we've moved away from the aspirational hero. We got tired of it, it was dull. If I was House's friend, I would hate it. How he so resolutely refuses to be happy or take the kind-hearted road. But we don't always like morally good people, do we? Hugh Laurie
My mind rebels at stagnation. Give me problems, give me work, give me the most abstruse cryptogram, or the most intricate analysis, and I am in my own proper atmosphere. But I abhor the dull routine of existence. I crave for mental exaltation. Arthur Conan Doyle
dull in Dutch is onnozel, dom, flauw, simpel
dull in French is terne, fade, obtus
dull in Italian is appannato, insipido
dull in Latin is bardus, stolidus, piger pigra pigrum
dull in Spanish is embotado, lasto, soso