Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
tuneless is an adjective meaning "not having a musical sound or pleasing tune". It carries one recorded sense.
not having a musical sound or pleasing tune
Definitions, synonyms and semantic relations for tuneless come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.