Synonyms for Eremitical (same or very similar meaning)
WordNet sense 1 (of or relating to or befitting eremites or their practices of hermitic living):
eremiticWordNet sense 2 (characterized by ascetic solitude):
anchoritic, hermitic, hermiticalWordNet sense 3 (not concerned with the temporal world or swayed by mundane considerations):
unworldlyFrom the ODE community, based on WordNetadd/edit