11
minor
7
ancillary
7
less important
5
unimportant(adjective, common, inferior)
4
secondary(adjective, important, common, inferior, useful)
4
subordinate(adjective, strong, common, inferior)
4
liminal
3
auxiliary(adjective, common, inferior, supplementary)
3
insignificant(adjective, common, inferior)
3
haven
3
inferior(adjective, common)
2
dependent(adjective, lead, head, master, boss)
2
leftover(adjective, excess, core, remaining)
2
support
1
extra(adjective, common, inferior, usual)
1
collateral(adjective, important, major, secondary, indirect)
1
trivial(adjective, common, inferior)
1
unnecessary(adjective, common, inferior)
1
contributory
1
in addition
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APASmart Define. (2016). main thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/main/thesaurus/antonyms
ChicagoSmart Define. 2016. "main thesaurus" https://smartdefine.org/main/thesaurus/antonyms (accessed September 22, 2026).
HarvardSmart Define 2016, main thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/main/thesaurus/antonyms>.
MLASmart Define. "main thesaurus" 29 March 2016. Web. 22 September 2026. <https://smartdefine.org/main/thesaurus/antonyms>