详细解释:a. 无职务的, 无效的, 违反道德上义务的
详细解释：
in.of.fi.cious
adj.Law （形容词）【法律】 Contrary to natural affection or moral duty. Used of a will in which the testator disinherits the rightful heirs with insufficient reason.违反道德上义务的：违背正常感情或道义的。用于遗嘱，其中立遗嘱人没有充分理由就取消其合法继承人的继承权
来源：Latin inofficiôsus [undutiful] 拉丁语 inofficiôsus [不孝顺的] in- [not] * see in- in- [不] *参见 in-officiôsus [dutiful] * see officious officiôsus [孝顺的] *参见 officious