IPA: /ˌʌnəˈtɛndɪd/
KK: /ʌnəˈtɛndɪd/
Not being looked after or watched; left without supervision or care.
The children played in the park while their toys were left unattended on the bench.
Unattended → It is formed from "un-" (meaning not) and "attend" (from Latin "attendere", meaning to stretch toward or pay attention). The word "unattended" means not being paid attention to or not being looked after.
Think of 'not' ('un-') paying 'attention' ('attendere') to something — that's why something unattended is not being looked after.