Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
good-tempered is an adjective meaning "not easily irritated". It carries one recorded sense.
not easily irritated
“an equable temper”
“not everyone shared his placid temperament”
“remained placid despite the repeated delays”
Definitions, synonyms and semantic relations for good-tempered come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.