A more thorough explanation:

An inofficious testament is a type of will that does not distribute property to the natural heirs of the deceased person. This means that the will may deprive the heirs of a portion of the estate that they would normally be entitled to receive by law.

For example, if a person creates a will that leaves all of their property to a friend instead of their children, who are their natural heirs, this would be considered an inofficious testament.

Inofficious testaments are also known as inofficious wills or unofficious wills. They are different from officious testaments, which distribute property to the testator's family and reserve a portion of the estate for the testator's children and other natural heirs.

Overall, an inofficious testament is a will that goes against the legal rights of the natural heirs and may be subject to legal challenges.