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