independent

(of a clause) capable of standing syntactically alone as a complete sentence.

“the main (or independent) clause in a complex sentence has at least a subject and a verb”

(of political bodies) not controlled by outside forces.

Free from external control and constraint.

“an independent mind”

“a series of independent judgments”

Not controlled by a party or interest group.

A neutral or uncommitted person (especially in politics).

A writer or artist who sells services to different employers without a long-term contract with any of them.