Frivolous : not having any serious purpose or value.Dashing : (of a man) attractive, adventurous, and full of confidence.Aggressive : ready or likely to attack or confront; characterized by or resulting from aggression.Childish : of, like, or appropriate to a child.Rakish : having or displaying a dashing, jaunty, or slightly disreputable quality or appearance.Synonym of Rakish is Dashing