2
replenishment
2
succession
2
surrogate(noun, replacement, alternative, alternate, backup)
2
tail
2
youngster
1
understudy(noun, cover, reserve, substitute, replacement)
1
acolyte(noun, follower)
1
adept(noun, follower)
1
adherer(noun, follower)
1
aftermath
1
agent(replacement, alternative, alternate, backup, surrogate)
1
apparent heir
1
appendix
1
applicant
1
aspirant
1
assistant(reserve, replacement, alternative, alternate, stalwart)
1
attendant
1
auxiliary(replacement, alternative, alternate, backup, surrogate)
1
backup(noun, cover, reserve, substitute, replacement)
1
backup man
10 years ago|12k views|share |citing 
APASmart Define. (2016). successor thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/successor/thesaurus/synonyms
ChicagoSmart Define. 2016. "successor thesaurus" https://smartdefine.org/successor/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, successor thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/successor/thesaurus/synonyms>.
MLASmart Define. "successor thesaurus" 29 March 2016. Web. 26 September 2026. <https://smartdefine.org/successor/thesaurus/synonyms>