mystery
I
noun
abstruseness, arcanum, cabala, cabalism, concealment, enigma, hidden meaning, inexplicableness, inscrutability, inscrutableness, mysticism, obscurity, occultism, occultness, puzzle, res occulta, riddle, secrecy, secret, secretiveness, thaumaturgy, undiscoverability, unexplored ground, unfathomability, unfathomableness
II
index
enigma, problem, question (issue), secret
Burton's Legal Thesaurus.
William C. Burton.
2006