Is “Atonic” a Scrabble word?
Yes
ATONIC
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 Atonic
/eɪˈtɒnɪk/
adjective
1.(of a sound or syllable) unstressed
2.Not having tone (pitch)
3.Lacking muscle tone.