Unsanctionable is an antonym of sanctionable.
As adjectives the difference between unsanctionable and sanctionable
is that unsanctionable is that cannot be sanctioned; inexcusable while sanctionable is that can be sanctioned.
unsanctionable
English
Adjective
(-)
That cannot be sanctioned; inexcusable.
Antonyms
* sanctionable sanctionable
English
Adjective
(-)
That can be sanctioned.
Derived terms
* sanctionably
* sanctionability
Antonyms
* unsanctionable