inofficiosus

Etymology
From.

Adjective

 * 1) not  of his, undutiful
 * 2)   to one’s duty
 * 3)  not obliging,
 * 4)   and
 * 1)   to one’s duty
 * 2)  not obliging,
 * 3)   and
 * 1)  not obliging,
 * 2)   and