10
natural(adjective, open, reasonable, unusual, unreasonable)
8
organic(adjective, natural, unimportant, basic, inorganic)
7
normal
5
plant-based
5
unaffected(adjective, honest, unsophisticated, unmoved, unchanged)
4
benevolent
4
genuine
4
human(feature, characteristic, magic)
4
real
4
realistic
2
archetypal
2
artless
2
authentic
2
commonplace
2
mainstream
2
standard
2
sympathetic
1
acceptable
1
average
1
characteristic
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APASmart Define. (2016). unnatural thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/unnatural/thesaurus/antonyms
ChicagoSmart Define. 2016. "unnatural thesaurus" https://smartdefine.org/unnatural/thesaurus/antonyms (accessed September 29, 2026).
HarvardSmart Define 2016, unnatural thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/unnatural/thesaurus/antonyms>.
MLASmart Define. "unnatural thesaurus" 30 March 2016. Web. 29 September 2026. <https://smartdefine.org/unnatural/thesaurus/antonyms>