6
unprompted(adjective, natural, instinctive, automatic, inherent)
6
unthinking(adjective, natural, instinctive, automatic, inherent)
5
born(adjective, innate)
5
deep-seated(adjective, characteristic, complete, true, natural)
5
implanted(intrinsicality, inborn)
4
genetic
3
basic
3
complete(adjective, true, fixed, basic, genuine)
3
dyed-in-the-wool
3
immanent(adjective, intrinsicality)
3
in the blood(expression, adjective, idiom)
3
in the grain(expression, idiom, intrinsicality, affections)
3
inveterate(adjective, affections, inborn)
3
thorough(adjective, inborn)
3
unacquired(adjective, complete, reasonable, ordinary, natural)
3
utter(adjective, inborn)
2
absolute(adjective, complete, true, fixed, basic)
2
atavistic
2
deep-rooted(adjective, affections)
2
elemental(adjective, characteristic, start, complete, essential)
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APASmart Define. (2015). congenital thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/congenital/thesaurus/synonyms
ChicagoSmart Define. 2015. "congenital thesaurus" https://smartdefine.org/congenital/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, congenital thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/congenital/thesaurus/synonyms>.
MLASmart Define. "congenital thesaurus" 10 April 2015. Web. 26 September 2026. <https://smartdefine.org/congenital/thesaurus/synonyms>