unaccompanied
adj.describing a piece of music that does not have any other instruments or voices playing with it. It is often used to describe a solo performance.
adj.not accompanied by other instruments or voices. Often used to describe a solo performance or a musical piece performed without a supporting ensemble.
“The pianist played an unaccompanied piece during the concert.”
“The violinist performed an unaccompanied sonata, relying solely on the resonance of the strings and the acoustics of the hall.”
“While the rest of the orchestra provided a lush harmonic backdrop, the lead soprano delivered an unaccompanied aria that showcased her vocal range and emotional depth.”
“Most have since returned to Morocco, but between 5-10% of those who entered – between 3,500 and 7,000 people – remain in Ceuta, including unaccompanied children.”
“However, under Spanish law, the state has a duty of care to young, unaccompanied migrants until they reach the age of 18.”
From un- + accompanied.
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.