36 entries under hidden topic. ×

9
clandestine(adjective, secret, private, spy)
9
surreptitious(adjective, secret, spy, sneaky)
8
undercover(adjective, secret, private, spy)
7
secret(adjective, private, spy, sneaky)
6
hush-hush(adjective, secret, private, spy)
6
underground(adjective, secret, spy, covert)
4
covert(adjective, secret, private, spy)
4
furtive(adjective, secret, private, sneaky)
3
sneaking(adjective, secret, private, fraudulent)
3
sneaky(adjective, secret, private, covert)
3
stealthy(adjective, secret, private, sneaky)
2
skulking(adjective, secret, private, sneaky)
2
sly(adjective, secret, private, sneaky)
2
stealth(adjective, secret, spy, covert)
2
underneath(adjective, secret, spy, covert)
1
on the QT(expression, adjective, idiom, secret, private)
1
on the sly(expression, adjective, idiom, private)
1
private(adjective, secret, spy, sneaky)
1
sub-rosa(adjective, secret, private, spy)
1
under-the-table(adjective, secret, private, sneaky)
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APASmart Define. (2015). hole-and-corner thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/hole-and-corner/thesaurus/synonyms
ChicagoSmart Define. 2015. "hole-and-corner thesaurus" https://smartdefine.org/hole-and-corner/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, hole-and-corner thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/hole-and-corner/thesaurus/synonyms>.
MLASmart Define. "hole-and-corner thesaurus" 13 April 2015. Web. 29 September 2026. <https://smartdefine.org/hole-and-corner/thesaurus/synonyms>