successor
Definitions
A person or thing that succeeds another and takes over their role, position, or title.
A person or thing that comes after another in time or sequence.
Examples
The CEO announced that she would be stepping down once her successor was chosen.
The prince is the official successor to the throne.
It is difficult to find a worthy successor for such a legendary coach.
Synonyms
heir inheritor replacement next in line descendant beneficiary substitute
Antonyms
predecessor forerunner ancestor antecedent precursor originator