Synonyms of the word 
UNATTENDED → NEGLECTED - UNACCOMPANIED - UNCARED-FOR - UNSUPERVISED
unattended
- adj. not attending.
neglected
- v. simple past tense and past participle of neglect.
- adj. Suffering from neglect.
unaccompanied
- adj. travelling without companions.
- adj. (music) performed or scored without accompaniment; solo.
uncared-for
- adj. Lacking care; neglected.
unsupervised
- adj. Not supervised; not being constantly observed.
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