Unkind; regardless of natural obligation; contrary to natural duty. --Suggesting that the parent had lost the use of his reason, when he made the inofficious testament. Let not a father hope to excuse an inofficious disposition of his fortune, by alleging that every man may do what he will with his own.

Unfit for an office. Thou drown’st thyself in inofficious sleep.

Not civil or attentive.