unofficial
apocryphal
groundless
inconclusive
indecisive
nonofficial
not following
not proved
unascertained
unattested
unauthentic
unauthenticated
unauthoritative
uncertified
unchecked
uncorroborated
undemonstrated
undetermined
unestablished
unfixed
unfounded
unproved
unproven
unsettled
unshown
unsubstantiated
unsupported
unsupported by evidence
unsustained
untested
untried
unvalidated
unverified
unwarranted
without basis
without grounds
'mlb
Bigfoot
accelerant
cathodoluminescence
disregarded
flying-saucer
lastest
long-unused
put-on
re-written
signature-based
subband
unsourced
untraceable
unverifiable
affirmed
confirmed
firmed
infirmed
reaffirmed
reconfirmed
termed