70 entries under clandestine topic. ×

1
disguised(underground, undisclosed)
1
dissembled(close, restricted, underground, discreet)
1
dissimulated(close, restricted, inside, underground)
1
in ambush(expression, close, restricted, inside)
1
incognito(close, restricted, underground, discreet)
1
inside(close, restricted, underground, discreet)
1
obscure(cover, hide, disguise, bury, secrete)
1
restricted(underground, discreet, undisclosed)
1
secretive(restricted, underground, discreet, undisclosed)
1
sub-rosa(close, underground, undisclosed, furtive)
1
top secret(expression, close, inside, underground)
1
unacknowledged(close, inside, underground, undisclosed)
1
under-the-table(underground, undisclosed)
1
under false pretense(expression, idiom, close, inside)
1
underground(adjective, undisclosed)
1
underhand(adjective, underground, undisclosed)
0
abstruse(underground, undisclosed)
0
ambiguous(underground, undisclosed)
0
arcane(underground, undisclosed)
0
cloak-and-dagger(underground, undisclosed)
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APASmart Define. (2015). sneak thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/sneak/thesaurus/synonyms
ChicagoSmart Define. 2015. "sneak thesaurus" https://smartdefine.org/sneak/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, sneak thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/sneak/thesaurus/synonyms>.
MLASmart Define. "sneak thesaurus" 10 April 2015. Web. 29 September 2026. <https://smartdefine.org/sneak/thesaurus/synonyms>