MYSTERY

n. 1 puzzle, enigma, conundrum, riddle, question How he escaped from the locked room is a mystery 2 obscurity, secrecy, indefiniteness, vagueness, nebulousness, ambiguity, ambiguousness, inscrutability, inscrutableness The identity of the beautiful lady in the green dress is shrouded in mystery 3 detective story or novel, murder (story), Colloq whodunit Joel, who once fancied himself an intellectual, now reads nothing but mysteries