baseless
empty
feeble
flimsy
groundless
idle
ill-founded
inconclusive
indecisive
insubstantial
not following
not proved
poor
unascertained
unattested
unauthenticated
unbased
uncertified
unconfirmed
uncorroborated
undemonstrated
undetermined
unestablished
unfixed
unfounded
ungrounded
unproved
unproven
unrigorous
unsettled
unshown
unsound
unsubstantial
unsubstantiated
unsupportable
unsupported
unsupported by evidence
unsustainable
untenable
untested
untried
unvalidated
unverified
unwarranted
vain
weak
without basis
without foundation
without grounds
beamless
commerce-destroying
extra-legal
fact-free
firsttwo
improvable
inconsecutive
justify
module-based
muddleheaded
nobiliary
often-repeated
overenthusiastic
particularist
pink-skinned
self-addressed
smarty
standers-by
tothis
unarguable
unbiblical