44 entries under instinctive topic. ×

12
second-nature(adjective, inside, interior, automatic)
10
normal(adjective, characteristic, reasonable, common, ordinary)
9
connate(adjective, characteristic, natural, essential, basic)
8
unlearned(adjective, natural, automatic, inherent)
7
regular(adjective, characteristic, reasonable, common, ordinary)
7
typical(adjective, characteristic, reasonable, common, ordinary)
6
impulsive(adjective, natural, automatic, involuntary)
6
involuntary(adjective, reasonable, ordinary, automatic)
6
mechanical(adjective, natural, automatic, inherent)
6
spontaneous(adjective, reasonable, ordinary, automatic)
6
unmeditated(adjective, natural, automatic, involuntary)
6
unpremeditated(adjective, natural, automatic, involuntary)
6
unprompted(adjective, natural, automatic, inherent)
6
unthinking(adjective, natural, automatic, inherent)
4
immediate(adjective, intimate, secret, private, penetrating)
1
original(adjective, characteristic, true, natural, individual)
0
animal(adjective, physical, primitive, bodily)
0
direct
0
emotional
0
in-built(characteristic, fixed, essential, spontaneous)
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APASmart Define. (2015). inborn thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/inborn/thesaurus/synonyms
ChicagoSmart Define. 2015. "inborn thesaurus" https://smartdefine.org/inborn/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, inborn thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/inborn/thesaurus/synonyms>.
MLASmart Define. "inborn thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/inborn/thesaurus/synonyms>