Synonyms of mysterious in English:

mysterious


See US English definition of mysterious

See UK English definition of mysterious

See Spanish definition of misterioso

adjective

1‘his colleague had vanished in mysterious circumstances’

SYNONYMS
puzzling, strange, peculiar, curious, funny, queer, odd, weird, bizarre, mystifying, inexplicable, baffling, perplexing, bewildering, confusing, uncanny, dark, impenetrable, incomprehensible, unexplainable, unfathomable, Delphic, sibylline, unaccountable, insoluble, obscure
arcane, recondite, secret, esoteric, occult, cryptic, hidden, concealed, supernatural, mystical
ANTONYMS

straightforward

2‘he was being very mysterious about his whereabouts’

SYNONYMS
enigmatic, inscrutable, secretive, sphinxlike, cloak-and-dagger, reticent, non-committal, discreet, evasive, furtive, surreptitious, covert
Military black
ANTONYMS

open