bearish

cynical, fatalistic, nihilist, nihilistic

desperate, discouraging, disheartening, inauspicious, unlikely, unpromising

bleak, cheerless, comfortless, depressing, desolate, dismal, dreary, funereal, gloomy, morose, saturnine, sepulchral, somber (or sombre), sullen

grim

contrary, hostile, negative

choleric, crabby, cranky, crotchety, fussy, grouchy, grumpy, querulous

irascible, irritable, peevish, peppery, petulant, quick-tempered, short-tempered, snappish, snippy, testy, touchy

argumentative, contentious, contrary, cussed

angry, exasperated, indignant, irate, mad, upset, uptight