Noah Webster
Careless
CARELESS, adjective [care and less. See Loose.]
1. Having no care; heedless; negligent; unthinking; inattentive; regardless; unmindful; followed by of or about; as a careless mother; a mother careless of or about her children, is an unnatural parent.
2. Free from care or anxiety; whence, undisturbed; cheerful.
Thus wisely careless innocently gay.
3. Done or said without care; unconsidered; as a careless throw; a careless expression.
4. Not regarding with care; unmoved by; unconcerned for; as, careless of money; careless of consequences.
5. Contrived without art.