substantiated

synonyms

actual

ascertained

attested

authenticated

borne out

categorically true

certain

certified

circumstantiated

confirmed

corroborated

demonstrated

determined

documentary

effectual

established

factual

fixed

historical

not in error

objectively true

proved

proven

real

settled

shown

sure-enough

true

true as gospel

truthful

unconfuted

undenied

undoubted

unerroneous

unfallacious

unfalse

unmistaken

unquestionable

unrefuted

validated

veracious

verified

veritable

rhymes

unsubstantiated