When people or things are left unattended, they are not being watched or looked after.
例句
Never leave young children unattended near any pool or water tank...千萬不能放任小孩呆在水池或水槽附近不管。An unattended bag was spotted near the platform at Gatwick...在蓋特威克機場站的站臺附近發現了一個無主袋子。
英漢詞典釋義
adj.
無人陪伴的;無人出席的;無人照顧的
She dashed through the door,leaving the bar unattended.她奪門而出,丟下酒吧不管。
英英詞典釋義
Adjective
1. not watched;
"she dashed out leaving the bar unattended""a fire left unattended"
2. lacking accompaniment or a guard or escort;
"unattended women""problems unattended with danger"
3. lacking a caretaker;
"a neglected child""many casualties were lying unattended"