113 entries under adjective topic. ×

24
substitute(noun, person, reserve, extra)
16
alternate(noun, person, reserve, extra)
12
deputy(noun, reserve, agent, substitute)
11
proxy(noun, agent, substitute, representative)
11
stand-in(noun, person, cover, reserve)
9
alternative(noun, extra, substitute, alternate)
9
double(noun, reproduction, copy, spare)
9
understudy(noun, reserve, substitute, alternative)
7
fill-in(noun, person, informal, reserve)
7
backup(noun, reserve, extra, agent)
6
sub(noun, person, informal, reserve)
5
supplanting(noun, change, talk, argument)
3
reserve(noun, cover, near, extra)
3
superseding
2
additional(counterfeit, new, spare, near)
2
another(counterfeit, new, near, reserve)
2
secondary
2
spare(noun, reproduction, copy, reserve)
2
standby(noun, spare, reserve, extra)
1
alternating
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APASmart Define. (2015). replacement thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/replacement/thesaurus/synonyms
ChicagoSmart Define. 2015. "replacement thesaurus" https://smartdefine.org/replacement/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, replacement thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/replacement/thesaurus/synonyms>.
MLASmart Define. "replacement thesaurus" 10 April 2015. Web. 20 September 2026. <https://smartdefine.org/replacement/thesaurus/synonyms>