Synonyms for Eerie (same or very similar meaning)
WordNet sense 1 (not existing in nature or subject to explanation according to natural laws; not physical or material):
supernaturalWordNet sense 2 (inspiring a feeling of fear; strange and frightening):
eeryWordNet sense 3 (being definitely out of the ordinary and unexpected; slightly odd or even a bit weird):
strange, unusualFrom the ODE community, based on WordNetadd/edit