6
spiritual(adjective, private, mental, inner)
5
confidential(adjective, intimate, secret, private, penetrating)
5
insular
5
intestine(adjective, heart, home, inside, national)
5
natural(adjective, gut, intuitive, intrinsicality)
5
nonintegrated
5
sectional
5
segregated
5
thorough(adjective, intimate, secret, private, personal)
5
trusted(adjective, intimate, secret, private, penetrating)
5
unthinking(adjective, gut, intuitive)
5
uptight(adjective, intimate, secret, private, penetrating)
4
basic(adjective, gut, intuitive)
4
center(adjective, mean, middle, inside, central)
4
civil
4
concealed(adjective, private, mental, inner)
4
congenital
4
deep-rooted(adjective, private, mental, inner)
4
detailed(adjective, intimate, secret, private, personal)
4
elemental(adjective, intimate, secret, private, penetrating)
11 years ago|11k views|share |citing 
APASmart Define. (2015). internal thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/internal/thesaurus/synonyms
ChicagoSmart Define. 2015. "internal thesaurus" https://smartdefine.org/internal/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, internal thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/internal/thesaurus/synonyms>.
MLASmart Define. "internal thesaurus" 10 April 2015. Web. 20 September 2026. <https://smartdefine.org/internal/thesaurus/synonyms>