Is “Atonal” a Scrabble word?
Yes
ATONAL
Valid in at least one Scrabble dictionary
Valid in these dictionaries
SOWPODS / CSW
Scrabble UK & International
TWL / NWL
Scrabble North America
Large English Dictionary
General English word list
Meaning of Atonal
/eɪˈtəʊnəl/
adjective
1.Lacking a tonal center or key.
2.Not tonal, lacking tones.