4
removed(adjective, close, quiet, remote, isolated)
4
respective(individual, own, personal, speciality)
4
sailor(noun, service, soldier, sapper)
4
secretly(adverb, concealment)
4
select(adjective, single, alone, isolation, apart)
4
soldier(noun, service, sapper)
4
sole(adjective, separate, simple, special, individual)
4
strange(adjective, separate, simple, obscure, special)
4
uncommunicative(reserved, mysterious, secret, reticent, tight-lipped)
4
underhand(adjective, secret, hidden, clandestine, fraudulent)
4
unrevealed(adjective, obscure, individual, secret, unknown)
4
unsociable(adjective, close, quiet, isolated, lonely)
4
unsocial(adjective, isolated, lonely, unsociable, reclusive)
3
anonymous
3
antisocial
3
appropriate(adjective, special, individual, restricted, specific)
3
auricular(adjective, show, concealment)
3
characteristic(adjective, special, individual, specific, typical)
3
cliquish
3
confidentially
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APASmart Define. (2016). private thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/private/thesaurus/synonyms
ChicagoSmart Define. 2016. "private thesaurus" https://smartdefine.org/private/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2016, private thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/private/thesaurus/synonyms>.
MLASmart Define. "private thesaurus" 26 February 2016. Web. 21 September 2026. <https://smartdefine.org/private/thesaurus/synonyms>