44 entries under natural topic. ×

9
instinctive(adjective, characteristic, reasonable, physical, common)
8
unlearned(adjective, instinctive, automatic, inherent)
7
internal(adjective, characteristic, essential, intimate)
7
reflex(adjective, inside, interior, automatic)
7
regular(adjective, characteristic, reasonable, common, ordinary)
7
typical(adjective, characteristic, reasonable, common, ordinary)
6
automatic(adjective, inside, interior, within)
6
impulsive(adjective, instinctive, automatic, involuntary)
6
mechanical(adjective, instinctive, automatic, inherent)
6
unmeditated(adjective, instinctive, automatic, involuntary)
6
unpremeditated(adjective, instinctive, automatic, involuntary)
6
unprompted(adjective, instinctive, automatic, inherent)
6
unthinking(adjective, instinctive, automatic, inherent)
5
intimate(adjective, characteristic, superior, aloof)
3
ingenerate(adjective, reasonable, ordinary, normal)
2
characteristic(adjective, reasonable, common, ordinary)
2
fixed(adjective, characteristic, individual, persistent)
2
inveterate(adjective, complete, fixed, utter)
2
natal(noun, adjective, reasonable, ordinary)
1
distinctive(adjective, characteristic, individual, essential)
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APASmart Define. (2015). inborn thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/inborn/thesaurus/synonyms
ChicagoSmart Define. 2015. "inborn thesaurus" https://smartdefine.org/inborn/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, inborn thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/inborn/thesaurus/synonyms>.
MLASmart Define. "inborn thesaurus" 10 April 2015. Web. 29 September 2026. <https://smartdefine.org/inborn/thesaurus/synonyms>