2
fixed(adjective, unusual, unreasonable, irregular)
2
foreign(adjective, unusual, unreasonable, irregular)
2
formal(adjective, gentle)
2
foxy
2
ghostly
2
guileful
2
imitation
2
induced
2
learned(verb, adjective)
2
man-made(adjective, artificial)
2
mock
2
paranormal
2
pretended(adjective, unusual, unreasonable, irregular)
2
preternatural(adjective, unusual, abnormal)
2
processed
2
sly
2
sophisticated(adjective, false)
2
strained
2
stylized
2
superhuman
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APASmart Define. (2016). natural thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/natural/thesaurus/antonyms
ChicagoSmart Define. 2016. "natural thesaurus" https://smartdefine.org/natural/thesaurus/antonyms (accessed September 27, 2026).
HarvardSmart Define 2016, natural thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/natural/thesaurus/antonyms>.
MLASmart Define. "natural thesaurus" 15 February 2016. Web. 27 September 2026. <https://smartdefine.org/natural/thesaurus/antonyms>