transcendent
Greek to one
able
ambiguous
arcane
beyond understanding
cabalistic
enigmatic
impenetrable
inarticulate
incalculable
incognizable
incoherent
incomprehensible
inscrutable
mysterious
mystic
numinous
past comprehension
puzzling
rambling
sealed
strange
unapparent
unapprehended
unascertained
unbeknown
uncharted
unclassified
unconnected
undisclosed
undiscoverable
undiscovered
undivulged
unexplained
unexplored
unexposed
unfamiliar
unfathomable
unfathomed
ungraspable
unguessed
unheard
unheard-of
unidentified
unimaginable
unintelligible
uninvestigated
unknown
unperceived
unplumbed
unknowability
disembodied
immaterial
immeasurable
inaccessible
inadmissible
insoluble
insurmountable
self-contradictory
unapproachable
unattainable
unchangeable
uncommunicative
unexplainable
uninhabitable
unpredictable
unreadable
unsearchable
untouchable
valueless
knowable