How many letters does the top answer for “characterized by avoidance of traditional western tonality” have?

The most common answer is atonal (6 letters).

Crossword clue: characterized by avoidance of traditional western tonality

2 answers found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).

atonal 6 letters wn-def

characterized by avoidance of traditional western tonality

unkeyed 7 letters wn-def

characterized by avoidance of traditional western tonality