Synonyms of mystery in English:

mystery


See definition of mystery

noun

1‘his death remains a mystery’

SYNONYMS

puzzle, enigma, conundrum, riddle, secret, unsolved problem, problem, question, question mark, closed book

informal poser

2‘much of her past is shrouded in mystery’

SYNONYMS

secrecy, darkness, obscurity, ambiguity, ambiguousness, uncertainty, impenetrability, vagueness, nebulousness

inscrutability, inscrutableness, unfathomableness, mystique, romance

3‘a 1920s murder mystery entitled ‘The Ghost Train’’

SYNONYMS

thriller, detective novel, detective story, murder story

informal whodunnit