36 entries under instinctive topic. ×

12
knee-jerk(adjective, inside, interior, automatic)
12
second-nature(adjective, inside, interior, automatic)
8
normal(adjective, characteristic, natural, automatic)
6
impulsive(adjective, natural, automatic, involuntary)
6
involuntary(adjective, natural, automatic, reflex)
6
mechanical(adjective, natural, automatic, inherent)
6
regular(adjective, characteristic, natural, automatic)
6
spontaneous(adjective, natural, automatic, involuntary)
6
typical(adjective, natural, special, automatic)
6
unlearned(adjective, natural, automatic, inherent)
6
unmeditated(adjective, natural, automatic, involuntary)
6
unpremeditated(adjective, natural, automatic, involuntary)
6
unprompted(adjective, natural, automatic, inherent)
6
unthinking(adjective, natural, automatic, inherent)
5
connate(adjective, characteristic, natural, essential, basic)
1
endemic(adjective, true, natural, special, individual)
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APASmart Define. (2016). intrinsic thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/intrinsic/thesaurus/synonyms
ChicagoSmart Define. 2016. "intrinsic thesaurus" https://smartdefine.org/intrinsic/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2016, intrinsic thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/intrinsic/thesaurus/synonyms>.
MLASmart Define. "intrinsic thesaurus" 31 March 2016. Web. 29 September 2026. <https://smartdefine.org/intrinsic/thesaurus/synonyms>