uncorroborated
unsubstantiated
confutation
unevidenced
paradiplomatic
evidencelessness
evidenceless
ill-founded
more cry than wool
unprovenanced
surmise
inveracity
inconclusively
conjecture
unsupported
argument from silence
undocumentable
unconclusive
unconcluding
unreasoning
blind
improper
pretence
debatable
special pleading
circumstantiate
counterfactual
incompatible
discrepant
the plural of anecdote is not data
nonevidence
support
nonproven
nonfacticity
soft
prima facie
assumptive
self-evident
axiomatic
gossamer-thin
taken for granted
evidence-based
show
supposed
daleel
bear witness
hypothesis
testify
prove
evidence