4
elemental(adjective, intimate, secret, private, penetrating)
4
essential(adjective, intimate, secret, private, personal)
4
faithful(adjective, close, correct, solid, exact)
4
finicky(adjective, full, careful, critical, thorough)
4
firsthand(adjective, intimate, secret, private, penetrating)
4
guarded(adjective, intimate, secret, private, penetrating)
4
gut(adjective, intimate, secret, private, personal)
4
immediate(adjective, intimate, secret, private, penetrating)
4
inborn(adjective, intimate, secret, private, penetrating)
4
inbred(adjective, intimate, secret, private, penetrating)
4
individual(adjective, complete, exact, certain, full)
4
indwelling(adjective, intimate, secret, private, penetrating)
4
ingrained(adjective, complete, full, intimate, secret)
4
inherent(adjective, intimate, secret, private, personal)
4
inmost(adjective, intimate, secret, private, penetrating)
4
innate(adjective, intimate, secret, private, personal)
4
innermost(adjective, intimate, secret, private, personal)
4
interior(adjective, intimate, secret, private, personal)
4
internal(adjective, intimate, secret, private, personal)
4
intrinsic(adjective, exact, certain, precise, intimate)
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APASmart Define. (2015). detailed thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/detailed/thesaurus/synonyms
ChicagoSmart Define. 2015. "detailed thesaurus" https://smartdefine.org/detailed/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, detailed thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/detailed/thesaurus/synonyms>.
MLASmart Define. "detailed thesaurus" 6 July 2015. Web. 25 September 2026. <https://smartdefine.org/detailed/thesaurus/synonyms>