Independent is an adjective meaning not influenced or controlled by others in matters of opinion, conduct, etc.; thinking or acting for oneself.
Other meanings of independent include:
1. Not subject to another's authority or jurisdiction; autonomous
2. Not relying on another for livelihood or subsistence
3. Not dependent on something else for existence or operation
4. Not affiliated with a larger controlling unit
5. (Of income or resources) making it unnecessary to earn one's living