Synonyms|111Antonyms|0|Broader|1Narrower|0Related|6

16 entries under close topic. ×

2
cryptic(inside, clandestine, underground, undisclosed)
1
backdoor(adjective, sensitive, inside, clandestine)
1
backstairs(adjective, sensitive, inside, clandestine)
1
camouflaged(clandestine, underground, undisclosed, furtive)
1
discreet(inside, clandestine, underground, undisclosed)
1
dissembled(clandestine, underground, undisclosed, furtive)
1
dissimulated(inside, clandestine, underground, undisclosed)
1
furtive(clandestine, underground, undisclosed)
1
in ambush(expression, adjective, sensitive, inside)
1
incognito(clandestine, underground, undisclosed, furtive)
1
inside(private, clandestine, underground, undisclosed)
1
sneak(inside, clandestine, underground, undisclosed)
1
sub-rosa(adjective, sensitive, clandestine, underground)
1
unacknowledged(adjective, sensitive, inside, clandestine)
1
under false pretense(expression, adjective, idiom, sensitive)
0
under the table(expression, adjective, idiom, sensitive)
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APASmart Define. (2015). top secret thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/top_secret/thesaurus/synonyms
ChicagoSmart Define. 2015. "top secret thesaurus" https://smartdefine.org/top_secret/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, top secret thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/top_secret/thesaurus/synonyms>.
MLASmart Define. "top secret thesaurus" 14 April 2015. Web. 26 September 2026. <https://smartdefine.org/top_secret/thesaurus/synonyms>