As an adjective unverifiable
is not capable of being verified, confirmed, checked or proven.
As a noun unverifiability is
the quality of being unverifiable.
unverifiable
English
Adjective
(-)
Not capable of being verified, confirmed, checked or proven.
unverifiability
English
Noun
(-)
The quality of being unverifiable.
Synonyms
*unverifiableness
Antonyms
*verifiability
*verifiableness