atonal

US /ˌeɪˈtoʊ.nəl/
UK /ˌeɪˈtoʊ.nəl/
"atonal" picture
1.

atonal

not written in any key or mode; lacking tonality.

:
Schoenberg's early works were revolutionary for their atonal compositions.
Schönbergs frühe Werke waren revolutionär für ihre atonale Kompositionen.
The modern piece of music was entirely atonal, challenging the audience's traditional expectations.
Das moderne Musikstück war völlig atonal und forderte die traditionellen Erwartungen des Publikums heraus.