Moody
Part of speech: adjective
Definition: Given to sudden or frequent changes of mind; temperamental sulky or depressed dour, gloomy or brooding
Example sentence: I really am a full-blown Scorpio. Whenever I look things up about my sign, it's like, Check, check, check: thoughtful, detailed, moody, stubborn, prideful, emotional.
Sullen
Part of speech: adjective
Definition: having a brooding ill temper; sulky.dismal; somber.sluggish; slow.
Example sentence: Winter lies too long in country towns; hangs on until it is stale and shabby, old and sullen.