Learn That Word

Synonyms for Occult (same or very similar meaning)

WordNet sense 1 (supernatural forces and events and beings collectively):
supernatural

WordNet sense 2 (impossible or nearly impossible to see; imperceptible by the eye):
invisible, unseeable

WordNet sense 3 (cause an eclipse of (a celestial body) by intervention):
eclipse

WordNet sense 4 (having an import not apparent to the senses nor obvious to the intelligence; beyond ordinary understanding):
mysterious, mystic, mystical, secret, orphic

WordNet sense 5 (confined to and understandable by only an enlightened inner circle):
esoteric

WordNet sense 6 (supernatural practices and techniques):
occult arts


From the ODE community, based on WordNetadd/edit