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.
Obsolete.
a.
disastrous; calamitous.
b.
unlucky; sinister.
noun
4.
Southern U.S.a tract of swampy land, usually along the coast.
Origin: 1275–1325;Middle Englishdismale unlucky time, dismol day one of two days in each month considered unlucky (hence later taken as adj.) < Anglo-Frenchdis mal < Medieval Latindiēs malī literally, evil days
c.1400, from Anglo-Fr. dismal, from O.Fr. (li) dis mals "(the) bad days," from M.L. dies mali "evil or unlucky days" (also called dies Ægyptiaci), from L. dies "days" (see diurnal) + mali, pl. of malus "bad" (see mal-). Through the Middle
Ages, calendars marked two days of each month as unlucky, supposedly based on the ancient calculations of Egyptian astrologers. Modern sense of "gloomy, dreary" first recorded in English 1590s, in reference to sounds. Related: Dismally.