dour

adj.

[1]	sullen , dogged , persistent , sour , unfriendly , pertinacious , tenacious , cold , gloomy , unyielding , morose , dreary , grim , cheerless , dismal , forbidding
[2]	hard , forbidding , grim , tough , austere , severe , hardy , inflexible , obstinate , stubborn , unyielding , uncompromising , strict , rigid , obdurate , stern , harsh , adamant , (Colloq) hard-nosed
[3]	dark , glowering , glum , moody , morose , saturnine , sour , sullen