Having self-control; reserved; uncommunicative; wholly engrossed in one's self.
Having all the essential working parts connected by a bedplate or framework, or contained in a case, etc., so that mutual relations of the parts do not depend upon fastening outside of the machine itself.
So long as the universe had a beginning, we could suppose it had a creator. But if the universe is really completely self-contained, having no boundary or edge, it would have neither beginning nor end: it would simply be. What place, then, for a creator? Stephen Hawking
I am not possessive at all. In every relationship I have had, the girl has left me. And the fundamental complaint has been that I am self-contained. I am just comfortable with myself and am always on an adventure. Shekhar Kapur
My love for traveling to islands amounts to a pathological condition known as nesomania, an obsession with islands. This craze seems reasonable to me, because islands are small self-contained worlds that can help us understand larger ones. Paul Theroux
Crime is one of the leads of the show. If there's ever anything that deals with a character's personal life, you don't have to worry about it getting too crazy. People don't have to worry about character arcs. Each episode is a self-contained unit. Christopher Meloni