non rational (adjective) mystic/mystical: secret, esoteric
Sinonime: A-1,
ace, blue-chip,
choice, excellent,
fine,
first-class, first-string, five-star, highest quality, in a class all by itself, prime*,
sound, superior,
supreme, tiptop, top-level, uppermost, very best, very good
Antonime: knowable,
natural,
palpable, undisguised