Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
changeful is an adjective meaning "such that alteration is possible; having a marked tendency to change". It carries one recorded sense.
such that alteration is possible; having a marked tendency to change
“changeable behavior”
“changeable moods”
“changeable prices”
Definitions, synonyms and semantic relations for changeful come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.