Wordnet 3.0
ADJECTIVE (1)
1. 
 associated with the priesthood or priests; 
- Example: "priestly (or sacerdotal) vestments"- Example: "hieratic gestures"[syn: priestly, hieratic, hieratical, sacerdotal]
WordNet (r) 3.0 (2006):
hieratical
    adj 1: associated with the priesthood or priests; "priestly (or
           sacerdotal) vestments"; "hieratic gestures" [syn:
           priestly, hieratic, hieratical, sacerdotal]