unaccompanied/ˌʌnəkʌmpənid/1无人陪伴的, 无随行的being without an escort反义词： accompanied2无伴奏的, 无人陪伴的playing or singing without accompaniment同义词： solo反义词： accompanied3无人陪伴的, 孤立的(of a state or an event) taking place without something specified occurring at the same time