tonelessness en · NOUN
Etymology
From toneless + -ness.
Meanings
-
(uncountable) The state or condition of being toneless.
So much menace, so much studied tonelessness and unmusicality — and on the part of so young a virtuoso — is disturbing, to say the least, and it comes a relief when he lays it aside.
2007 February 11, Stephen Metcalf, “Informal Menace”, in New York Times: