35 entries under supernumerary topic. ×

15
tentative(adjective, new, inferior, sensitive, limited)
7
experimental(adjective, new, near, unsettled, extra)
3
alternative(extra, crude, substitute, temporary, auxiliary)
3
backup(extra, auxiliary)
3
reserve(extra, auxiliary)
2
counterfeit(extra, auxiliary)
2
dummy(extra, auxiliary)
2
ersatz(extra, crude, auxiliary, rough-and-ready)
2
imitation(extra, auxiliary)
2
mock(extra, auxiliary)
2
proxy(extra, auxiliary)
2
vicarious(extra, auxiliary)
1
auxiliary
1
extra
0
additional(extra, auxiliary)
0
ancillary(extra, auxiliary)
0
another(extra, auxiliary)
0
artificial(extra, auxiliary)
0
false(extra, auxiliary)
0
other(extra, auxiliary)
<12>
10 years ago|10k views|share |citing 
APASmart Define. (2016). provisional thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/provisional/thesaurus/synonyms
ChicagoSmart Define. 2016. "provisional thesaurus" https://smartdefine.org/provisional/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, provisional thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/provisional/thesaurus/synonyms>.
MLASmart Define. "provisional thesaurus" 26 February 2016. Web. 25 September 2026. <https://smartdefine.org/provisional/thesaurus/synonyms>