Nervous, apprehensive.
Cool by virtue of being tough, dark, or badass.
Having some of the forms, such as drapery or the like, too sharply defined.
On the edge between acceptable and offensive; pushing the boundaries of good taste; risqué.
Exhibiting behavior that is disconcerting or alarming, sometimes in an effort to impress or to troll others.
Creatively challenging; cutting edge; leading edge.
Sharp; having prominent edges.
Characterized by an absence of sleep.