admittable
/ədˈmɪtəbl/adjective
Acceptable, allowable, valid. In later use also: capable of being or having the right to be admitted to a place, position, etc.
Origin
Late Middle English; earliest use found in Thomas Hoccleve (c1367–1426), poet and clerk. Originally from post-classical Latin admittibilis; in later use from admit + -able.