Webster's Revised Unabridged Dictionary · 1913

Inofficious

Inofficious , adjective

[Latin inofficiosus: compare French inofficieux. See In- not, and Officious.]

1.
Indifferent to obligation or duty. [Obsolete]
Thou drown'st thyself in inofficious sleep. — B. Jonson
2.
Not officious; not civil or attentive. [Obsolete] — Jonhson
3.
(Law) 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.
The inofficious testament. — Blackstone
An inofficious disposition of his fortune. — Paley