Unearthliness is a word that describes a feeling of something being otherworldly or supernatural. Some synonyms for unearthliness include strangeness, ethereality, mystique, and surrealism. These words all convey a sense of the unknown and mysterious, which is often associated with unearthliness. Other synonyms for this word include ghostliness, supernaturalness, and weirdness. All of these words can be used to describe a place, person, or thing that is outside of the realm of the ordinary. Unearthliness often invokes a sense of fascination and wonder in people, as it is associated with things that are beyond our usual understanding of the world.