Free from the influence, guidance, or control of others
A self-contained 'city', aircraft carriers aren't the speediest things afloat, but can transport a fleet of fighters to whatever part of the world they might be required.
When you read the old newspapers and see the ads, you realize how self-contained Ouray was back then.
It was proposed now to establish a more numerous hierarchy, self-contained within the limits of Burgundian rule, with three archbishops and fifteen diocesans.
They are of two kinds: (I) those in which the motive power and lifting gear are self-contained on the crab; and (2) those in which the motive power is placed in a fixed position.
The English and Irish provinces are treated as self-contained.