Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
self-will is a noun meaning "resolute adherence to your own ideas or desires". It carries 2 recorded senses.
resolute adherence to your own ideas or desires
the trait of resolutely controlling your own behavior
Definitions, synonyms and semantic relations for self-will come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.