Sullen
Part of speech: adjective
Definition: having a brooding ill temper; sulky. dismal; somber. sluggish; slow.
Example sentence: I would not openly categorize myself as a sullen teenager, but that kind of role comes more easier to me than a bright, perky thing.
Cloudy
Part of speech: adjective
Definition: Covered with or characterised by clouds; overcast.Not transparent or clear.Uncertain; unclear.
Example sentence: Betting that markets will be 'volatile' is like betting the weather will be partly cloudy. It's a smart-sounding strategy that doesn't mean much.