IPA: /ˈruːləs/
KK: /ˈruːləs/
Not controlled or limited by any rules or regulations.
In a ruleless society, people can act freely without restrictions.
Ruleless → It is formed from "rule" (from Old French *reule*, meaning a prescribed guide for conduct or action) and "-less" (meaning without). The word "ruleless" means without rules or regulations.
Think of being 'without' ('-less') any 'prescribed guide' ('rule') — that's what ruleless means.