1. 无人照管：unattached 不连接的 | unattended 无人照管 | unavailable a.不能利用的

2. 无人看守的：unassured 未得保证的 | unattended 无人看守的 | unattended beacon 自动信标

3. 无陪伴的：unattainable 达不到的 | unattended 无陪伴的 | unauthentic 不真实的

4. 无人管理的：unattended station 无人管理站 | unattended 无人管理的 | unaudited voucher 未审核凭单

1. 无人照料的；无人看管的
    When people or things are left unattended, they are not being watched or looked after.

unattended的解释

    e.g. Never leave young children unattended near any pool or water tank...
           千万不能放任小孩呆在水池或水槽附近不管。
    e.g. An unattended bag was spotted near the platform at Gatwick...
           在盖特威克机场站的站台附近发现了一个无主袋子。

1. lacking a caretaker

    e.g. a neglected child
           many casualties were lying unattended

    Synonym: neglected

2. lacking accompaniment or a guard or escort

    e.g. unattended women
           problems unattended with danger

3. not watched

    e.g. she dashed out leaving the bar unattended
           a fire left unattended