10
multidimensional(adjective, simple)
8
extra(noun, adjective, decrease, common, insignificant)
7
secondary(adjective, insignificant, intricate)
6
less important
5
incidental(adjective, minor, related)
5
peripheral(adjective, insignificant, intricate)
5
support
4
ancillary
4
inessential(adjective, insignificant, intricate)
4
liminal
4
minor(adjective, insignificant, intricate)
3
additional(adjective, insignificant, intricate)
3
auxiliary(adjective, insignificant, intricate)
3
dependent
3
extraneous(adjective, material, unneeded)
3
incident
3
outside(adjective, insignificant, intricate)
3
parenthetical(adjective, incidental)
2
higher
2
last
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APASmart Define. (2015). basic thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/basic/thesaurus/antonyms
ChicagoSmart Define. 2015. "basic thesaurus" https://smartdefine.org/basic/thesaurus/antonyms (accessed September 22, 2026).
HarvardSmart Define 2015, basic thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/basic/thesaurus/antonyms>.
MLASmart Define. "basic thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/basic/thesaurus/antonyms>