2.  Derived from the Latin numen, it is used today to mean the experience of the presence of a divinity. It was popularized by Rudolf Otto in his book, The Idea of the Holy (original German title Das Heilge) who believed that the numinous experience could lead to a belief in deities, the possibility of spiritual transcendence, the supernatural, etc.

3.  Containing divine power or divine presence, imbued with spirit. More generally: capable of evoking fear, trembling, and fascination.