47 entries under sneaky topic. ×

14
surreptitious(adjective, dishonest, secret, hidden, spy)
12
covert(adjective, show, secret, reticent, hidden)
9
furtive(adjective, dishonest, secret, reticent, hidden)
8
hidden(adjective, secret, spy, clandestine, underground)
8
hole-and-corner(adjective, secret, private, hidden, spy)
7
underhand(adjective, deceitful, secret, hidden, spy)
4
underhanded(dishonest, cunning, deceitful, secret, hidden)
3
skulking(adjective, secret, private, hidden, sneak)
3
secretive(adjective, dishonest, cunning, deceitful, mysterious)
3
sly(adjective, quiet, dishonest, cunning, deceitful)
2
shifty(dishonest, cunning, deceitful, underhanded)
2
slinking(secret, private, hidden, sneak)
2
sub-rosa(adjective, dishonest, cunning, deceitful, secret)
2
under-the-table(secret, private, hidden, clandestine)
1
artful(sly, fraudulent, covert, secretive)
1
cautious(mysterious, private, reticent, covert)
1
conspiratorial(clandestine, underground, undisclosed, covert)
1
crafty(dishonest, cunning, deceitful, underhanded)
1
cunning(dishonest, deceitful, underhanded, covert)
1
foxy(sly, fraudulent, covert, secretive)
<123>
11 years ago|6.9k views|share |citing 
APASmart Define. (2015). undercover thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/undercover/thesaurus/synonyms
ChicagoSmart Define. 2015. "undercover thesaurus" https://smartdefine.org/undercover/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, undercover thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/undercover/thesaurus/synonyms>.
MLASmart Define. "undercover thesaurus" 13 April 2015. Web. 26 September 2026. <https://smartdefine.org/undercover/thesaurus/synonyms>