I like “numinous.”
Antediluvian was the word that made me fall in love with words. But serendipity is also a long-time favorite, especially when used to describe an occurrence as serendipitous.
Excellent! My new goal is to use both numinous and antediluvian (which sounds like an alien virus as opposed to a Biblical period) together in a sentence. And now your words belong to me! Mwa-ha!