Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
battleful is an adjective meaning "having or showing a ready disposition to fight". It carries one recorded sense.
having or showing a ready disposition to fight
“bellicose young officers”
“a combative impulse”
“a contentious nature”
Definitions, synonyms and semantic relations for battleful come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.