nontonal

/nɑnˈtoʊnəl/
adjective
  1. Not using or based on musical tones or a key; lacking a clear pitch center.
    • Some modern pieces are nontonal, meaning they do not follow a traditional melody.
    • She found nontonal jazz challenging to listen to at first.
    • The composer's nontonal music surprised the audience with its unusual sounds.
  2. Not relating to the pitch of a sound in language; not using tone to distinguish word meanings.
    • In nontonal languages, the same syllable can be said in different pitches without changing the word's meaning.
    • English is a nontonal language, unlike Mandarin or Thai.
    • Learning a tonal language can be hard for speakers of nontonal languages.
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