Synonyms|36Antonyms|1|Broader|0Narrower|0Related|0
12
accustomed(adjective, inside, instinctive, interior, automatic)
12
congenital(adjective, inside, instinctive, interior, automatic)
12
habitual(adjective, inside, instinctive, interior, automatic)
12
inborn(adjective, inside, instinctive, interior, automatic)
12
ingrained(adjective, inside, instinctive, interior, automatic)
12
inherent(adjective, inside, instinctive, interior, automatic)
12
innate(adjective, inside, instinctive, interior, automatic)
12
intrinsic(adjective, inside, instinctive, interior, automatic)
12
intuitional(adjective, inside, instinctive, interior, automatic)
12
intuitive(adjective, inside, instinctive, interior, automatic)
12
knee-jerk(adjective, inside, instinctive, interior, automatic)
12
natural(adjective, inside, instinctive, interior, automatic)
12
rooted(adjective, inside, instinctive, interior, automatic)
11
instinctual(adjective, inside, instinctive, interior, automatic)
8
visceral(adjective, primitive, inside, instinctive, automatic)
6
automatic(adjective, primitive, inside, interior, involuntary)
6
impulsive(adjective, instinctive, automatic, involuntary, reflex)
6
involuntary(adjective, instinctive, automatic, reflex, instinctual)
6
mechanical(adjective, instinctive, automatic, innate, inherent)
6
native(adjective, instinctive, automatic, innate, inherent)
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APASmart Define. (2011). second-nature thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/second-nature/thesaurus/synonyms
ChicagoSmart Define. 2011. "second-nature thesaurus" https://smartdefine.org/second-nature/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2011, second-nature thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/second-nature/thesaurus/synonyms>.
MLASmart Define. "second-nature thesaurus" 24 May 2011. Web. 21 September 2026. <https://smartdefine.org/second-nature/thesaurus/synonyms>