mysteriousness
nounThe quality of being mysterious; obscurity; the quality of being hidden from the understanding and calculated to excite curiosity or wonder.
nounThat which is mysterious or obscure.
nounThe behavior or manner of one who wishes or affects to imply a mystery: as, he told us with much mysteriousness to wait and see.
nounThe state or quality of being mysterious.
nounSomething mysterious; a mystery.
nounThe quality of being