Careless :: Careless (a.) Free from care or anxiety. hence, cheerful; light-hearted..
Careless :: Careless (a.) Having no care; not taking ordinary or proper care; negligent; unconcerned; heedless; inattentive; unmindful; regardless.
Careless :: Careless (a.) Without thought or purpose; without due care; without attention to rule or system; unstudied; inconsiderate; spontaneous; rash; as, a careless throw; a careless expression..
Careless :: Careless (a.) Not receiving care; uncared for.