Nouns

(n)sulkya light two-wheeled vehicle for one person; drawn by one horse

Adjectives

(s)huffish, sulkysullen or moody
(s)sluggish, sulkyslow or slothful“a sluggish stream”
(s)glooming, gloomy, gloomful, sulkydepressingly dark“the gloomy forest”, “the glooming interior of an old inn”, “‘gloomful’ is archaic”