(adj-na,n) unknown
obscure
indistinct
uncertain
ambiguous
ignorant
lack of wisdom
anonymous
unidentified
(P)
(adj-na,n) inaccurate
indistinct
imprecise
unclear
indecisive
(adj-na,n) dimness
obscurity
indistinctness
unclear
unintelligible
(adj-na,n) (1) gloominess
gloom
(2) questionable
unfair
underhand
(n) fate (safety) of a person (persons) being unknown
(n,adj-no) unconscious
senseless
(n,adj-na,adj-no) of uncertain meaning
ambiguous
cryptic
(P)
(n,adj-no) cause unknown
(n,adj-no) missing
unaccounted for
(n) of unknown affiliation
(n) untraceable
long lost
one's whereabouts being unknown
(n) dubious
doubtful
of unknown authenticity
(n,adj-no) (a person or body being) unidentifiable (unidentified)
(n,adj-no) unidentifiable
unidentified
(n,adj-na) the point of an argument being unclear
the tenor of an argument being poorly reasoned
(n) missing person
(n) unaccounted-for expenditures
(n) without a place of publication
sine loco
s.l.
(n) John Doe
Jane Doe
person unknown