If one thing is unconnected with another or the two things are unconnected, the things are not related to each other in any way.
例句
She was known to have had personal problems unconnected with her marriage...据悉，她有过一些与婚姻不相干的个人问题。I can't believe that those two murders are unconnected.我不相信那两桩谋杀案之间毫无关联。
英英词典释义
Adjective
1. having had the relation broken
2. not joined or linked together
3. not connected by birth or family
4. lacking orderly continuity;
"a confused set of instructions""a confused dream about the end of the world""disconnected fragments of a story""scattered thoughts"