Meaning of unaccompanied

(adj) being without an escort

playing or singing without accompaniment; "the soloist sang unaccompanied"

(of a state or an event) taking place without something specified occurring at the same time; "a headache unaccompanied by other symptoms"

(adv) without anybody else or anything else; "the child stayed home alone"; "the pillar stood alone, supporting nothing"; "he flew solo"