sovereign
/ˈsä-v(ə-)rən/
noun
one possessing or held to possess supreme political power or sovereignty
one that exercises supreme authority within a limited sphere
an acknowledged leader : arbiter
adjective
superlative in quality
of the most exalted kind : supreme
having generalized curative powers
sovereign virtue
free independent sovereign autonomous mean not subject to the rule or control of another. free stresses the complete absence of external rule and the full right to make all of one's own decisions. independent implies a standing alone; applied to a state it implies lack of connection with any other having power to interfere with its citizens, laws, or policies.
noun
a British gold coin worth 10 shillings