Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
unshockable is an adjective meaning "incapable of being shocked". It carries one recorded sense.
incapable of being shocked
“he was warmhearted, sensible and unshockable”
Definitions, synonyms and semantic relations for unshockable come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.