Inofficious

Webster's Dictionary of the English Language

·adj Indifferent to obligation or duty.

II. Inofficious ·adj Not officious; not civil or attentive.

III. Inofficious ·adj Regardless of natural obligation; contrary to natural duty; unkind;

— commonly said of a testament made without regard to natural obligation, or by which a child is unjustly deprived of inheritance.