- indifferent to moral restraints; given to immoral or improper conduct; licentious; dissipated.
- given to dissipation; debauched
late 14c., “loose, negligent, morally or religiously lax,” from Latin dissolutus “loose, disconnected,” past participle of dissolvere “loosen up” (see dissolve). A figurative use of the classical Latin word. Related: Dissolutely; dissoluteness.