64 entries under clandestine topic. ×

2
secretive(adjective, restricted, underground, discreet)
2
underhanded(underground, undisclosed)
1
camouflaged(underground, undisclosed)
1
cryptic(underground, undisclosed)
1
discreet(special, intimate, restricted, personal)
1
disguised(secret, hidden, underground, undisclosed)
1
dissembled(restricted, underground, discreet, undisclosed)
1
dissimulated(restricted, underground, discreet, undisclosed)
1
in ambush(expression, restricted, underground, discreet)
1
incognito(adverb, secret, restricted, hidden, spy)
1
mystical(adjective, underground, undisclosed)
1
out-of-the-way(close, quiet, private, isolated)
1
secluded(close, quiet, private, isolated, personal)
1
shrouded(adjective, separate, secret, underground)
1
sly(underground, undisclosed)
1
sneak(restricted, underground, discreet, undisclosed)
1
sneaky(underground, undisclosed)
1
sub-rosa(secret, hidden, spy, underground)
1
top secret(expression, adjective, idiom, secret, private)
1
under-the-table(secret, underground, undisclosed, top-secret)
11 years ago|7.9k views|share |citing 
APASmart Define. (2015). confidential thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/confidential/thesaurus/synonyms
ChicagoSmart Define. 2015. "confidential thesaurus" https://smartdefine.org/confidential/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, confidential thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/confidential/thesaurus/synonyms>.
MLASmart Define. "confidential thesaurus" 10 April 2015. Web. 29 September 2026. <https://smartdefine.org/confidential/thesaurus/synonyms>