THESAURUS
undiscoverable
able, beyond reach, closed forever to, closed to, enigmatic, impenetrable, impervious, inaccessible, incalculable, incognizable, lost to, mysterious, out of reach, puzzling, sealed, strange, un-come-at-able, unaccessible, unapparent, unapprehended, unapproachable, unascertained, unattainable, unavailable, unbeknown, uncharted, unclassified, undisclosed, undiscovered, undivulged, unexplained, unexplored, unexposed, unfamiliar, unfathomed, ungettable, unheard, unheard-of, unidentified, uninvestigated, unknowable, unknown, unobtainable, unperceived, unplumbed, unprocurable, unreachable, unrevealed, unsecurable, unsuspected, untouched, virgin
ROGET THESAURUS
undiscoverable
Unintelligibility
N
unintelligibility, incomprehensibility, imperspicuity, inconceivableness, vagueness, obscurity, ambiguity, doubtful meaning, uncertainty, perplexity, spinosity, obscurum per obscurius, mystification, latency, transcendentalism, paradox, oxymoron, riddle, enigma, puzzle, diagnus vindice nodus, sealed book, steganography, freemasonry, pons asinorum, asses' bridge, high Dutch, Greek, Hebrew, jargon, unintelligible, unaccountable, undecipherable,
undiscoverable, unknowable, unfathomable, incognizable, inexplicable, inscrutable, inapprehensible, incomprehensible, insolvable, insoluble, impenetrable, illegible, as Greek to one, unexplained, paradoxical, enigmatic, enigmatical, puzzling (secret), indecipherable, obscure, dark, muddy, clear as mud, seen through a mist, dim, nebulous, shrouded in mystery, opaque, dense, undiscernible, misty, hidden, latent, indefinite, garbled, perplexed, undetermined, vague, loose, ambiguous, mysterious, mystic, mystical, acroamatic, acroamatical, metempirical, transcendental, occult, recondite, abstruse, crabbed, inconceivable, inconceptible, searchless, above comprehension, beyond comprehension, past comprehension, beyond one's depth, unconceived, inexpressible, undefinable, incommunicable, unpredictable, unforeseeable, it's Greek to me.
