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-boiled is an adjective meaning "tough and callous by virtue of experience". It carries 3 recorded senses.
tough and callous by virtue of experience
used of persons; emotionally hardened
“faced a case-hardened judge”
(eggs) cooked until the yolk is solid
Definitions, synonyms and semantic relations for hard-boiled come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.