Pronunciation: (diz'mul),[key] —adj. 1. causing gloom or dejection; gloomy; dreary; cheerless; melancholy: dismal weather. 2. characterized by ineptness or lack of skill, competence, effectiveness, imagination, or interest; pitiful: Our team played a dismal game. 3. Obs. a. disastrous; calamitous.
b. unlucky; sinister.
—n. Southern U.S.a tract of swampy land, usually along the coast.