Disallowable

Dis`al·low'a·ble adjective Not allowable; not to be suffered. Raleigh. -- Dis`al*low'a*ble*ness , noun
Found on http://www.encyclo.co.uk/webster/D/74

Disallowable

• (a.) Not allowable; not to be suffered.
Found on http://thinkexist.com/dictionary/meaning/disallowable/
No exact match found