Meaning of the word "be left unattended" in English

What does "be left unattended" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

be left unattended

US /bi left ˌʌn.əˈten.dɪd/
UK /bi left ˌʌn.əˈten.dɪd/
"be left unattended" picture

Phrase

to be not being watched or looked after

Example:
Baggage must not be left unattended at any time.
The fire should never be left unattended.