23 entries under adjective topic. ×

9
central(main, middle, principal)
8
center(noun, middle)
5
basic(insignificant, fundamental, intricate, elementary)
4
main
4
fundamental
4
internal
3
chief
3
mainstream
3
centric
3
crucial
2
inner
2
interior
1
primary
1
vital
0
key
0
major
0
inherent
0
intrinsic
0
operative
0
pivotal
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APASmart Define. (2015). peripheral thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/peripheral/thesaurus/antonyms
ChicagoSmart Define. 2015. "peripheral thesaurus" https://smartdefine.org/peripheral/thesaurus/antonyms (accessed September 23, 2026).
HarvardSmart Define 2015, peripheral thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/peripheral/thesaurus/antonyms>.
MLASmart Define. "peripheral thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/peripheral/thesaurus/antonyms>