disconnected

Etymology

verb

1. simple past and past participle of disconnect
   The phone company disconnected my DSL.

adj

1. That is no longer connected.
   There's no use trying to make a call on the disconnected phone.
2. Feeling a lack of empathy or association with something.
   I just feel so disconnected from people living on the other side of the world.
3. Incoherent; disjointed.
4. (mathematics, of a topological space) That can be partitioned into two nonempty subsets which are both open and closed.