The opposite of heir is heiress. Heir is the male beneficiary while a heiress refers to a female who is to inherit wealth.
The opposite of "heir" is "disinheritance" or "disinherited person," as an heir is someone who is legally entitled to inherit property or assets from a predecessor. In a broader sense, "heir" implies a continuation or succession, while its opposite would suggest a lack of succession or entitlement.
The noun for a male is an heir; the noun for a female is an heiress.
heiress
heir
Heiress.
Do you mean testator? If an heir receives a bequest, the testator is the person that gives the bequest to him/her.
the female is an heiress
the homophone for heir is air
heir/air (NOT hair!)
"Heir to heir" in a will means that a person is designated as the beneficiary or inheritor of assets who, in turn, designates another person as their beneficiary or inheritor. It establishes a succession plan for the assets to pass from one designated person to another.
he was heir to the throne
A person who inherits possessions is called an heir. The word heir is a noun. Some synonyms for heir are beneficiary, grantee, inheritor, and successor.