heir presumptiveheir presumptive
pl. heirs presumptive
an heir whose right to a certain property or title will be lost if someone more closely related to the ancestor is born before that ancestor dies
nounpl. heirs presumptive
An heir who stands to inherit the estate, title, or office of an intestate ancestor, but whose claim can be defeated if a relative who is closer to the ancestor is born prior to the ancestor's death.
(plural heirs presumptive)
- (usually monarchy) Someone who will inherit only if no better choice for an heir is born.