Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
hieratical is an adjective meaning "associated with the priesthood or priests". It carries one recorded sense.
associated with the priesthood or priests
“priestly (or sacerdotal) vestments”
“hieratic gestures”
Definitions, synonyms and semantic relations for hieratical come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.