Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
hard-bitten is an adjective meaning "tough and callous by virtue of experience". It carries one recorded sense.
tough and callous by virtue of experience
Definitions, synonyms and semantic relations for hard-bitten come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.