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Synonyms for Sacred (same or very similar meaning)

WordNet sense 1 (having worth or merit or value; being honorable or admirable):
worthy

WordNet sense 2 (worthy of adoration or reverence):
reverend

WordNet sense 3 (concerned with sacred matters or religion or the church):
religious, spiritual

WordNet sense 4 (must be kept sacred):
inviolable, sacrosanct

WordNet sense 5 (devoted to or in the service or worship of a deity):
divine

WordNet sense 6 (worthy of religious veneration):
hallowed

WordNet sense 7 (made or declared or believed to be holy; devoted to a deity or some religious ceremony or use):
sanctified, consecrated

WordNet sense 8 (belonging to or derived from or associated with a divine power):
holy

WordNet sense 9 (devoted to a cause or ideal or purpose):
dedicated


From the ODE community, based on WordNetadd/edit