1. 不连接的：Unassign 解除指定 | unattached 不连接的 | unattended 无人照管

2. 未被逮捕的：unassured 不确定的 | unattached 未被逮捕的 | unattainable 难到达的

3. 无所属的：unassorted 未分级的 不混合 | unattached 无所属的 | unattendedautomaticexchange 无人值班自动电话交换台

1. 未婚的；没有女朋友（或男朋友）的
Someone who is unattached is not married or does not have a girlfriend or boyfriend.

e.g. I knew only two or three unattached men.
我只认识两三个未婚的男士。

adj

1. not associated in an exclusive sexual relationship

Synonym: uncommitted

2. (of animals) able to swim about
not attached

Synonym: free-swimming

3. not fastened together