RichThesaurus
unexplained
unexplained
synonyms
obscure
unascertained
unfathomable
mystifying
recondite
hidden
abstruse
indeterminate
arcane
elliptical
unclear
as clear as mud
unfamiliar
equivocal
baffling
vague
unrevealed
unapprehended
concealed
puzzling
recherché
indefinite
cryptic
oblique
inexplicable
Delphic
enigmatic
unknown
undiscovered
esoteric
opaque
unrecognized
impenetrable
incomprehensible
oracular
ambiguous
perplexing
woolly
unspecific
unnoted
unperceived
unsettled
untold
uninterpretable
unidentified
unsung
unspecified
uninvestigated
unintelligible
unnamed
more synonyms
unexplained
antonyms
known
clear
familiar
well-known
famous
recognized
limpid
plain
identified
recognizable
ascertained
specific
definite