/,ʌnə'kʌmpənɪd; ,ʌnə`kʌmpənɪd/
adj
1 (fml 文) without a companion; unescorted 无伴的; 无陪伴的
*Children unaccompanied by an adult will not be admitted. 儿童无成人带领不得入内.
* unaccompanied luggage/baggage, ie travelling separately from its owner 托运的行李.
2 (music 音) performed without an accompaniment 无伴奏的
*sing unaccompanied 无伴奏演唱.

adj
someone or something that is unaccompanied has no one with them
→accompany
　Unaccompanied children are not allowed on the premises.
unaccompanied bag/luggage etc
　The airport X-rays all unaccompanied baggage.
unaccompanied by sth
formal without something
　Many large Third World cities have arisen unaccompanied by national industrial growth.
an unaccompanied singer or musician sings or plays alone
→accompaniment, accompanist accompanist
　Lizzie sang unaccompanied .
　works for unaccompanied violin