24 entries under underhanded topic. ×

14
disguised(verb, adjective, obscure, unknown, hidden)
13
cloaked(verb, adjective, obscure, secret, hidden)
10
veiled(verb, adjective, hidden, imperceptible, concealed)
9
covert(adjective, secret, hidden, clandestine, imperceptible)
8
camouflaged(verb, adjective, obscure, secret, unknown)
6
obscured(verb, adjective, secret, hidden, imperceptible)
5
shrouded(verb, adjective, obscure, secret, unknown)
4
buried(verb, adjective, secret, unknown, hidden)
3
dissembled(verb, secret, hidden, clandestine, underground)
3
hush-hush(adjective, secret, hidden, concealed)
2
incog(obscure, secret, unknown, hidden)
2
stealthy(adjective, secret, hidden, underground, concealed)
2
under cover(expression, privy)
2
undercover(obscure, secret, unknown, hidden, concealed)
1
QT(secret, unknown, hidden, concealed)
1
clandestine(secret, unknown, hidden, concealed)
1
privy(secret, hidden, clandestine, underground)
1
sub rosa(expression, adjective, secret, clandestine, underground)
1
surreptitious(secret, unknown, hidden, concealed)
1
ulterior(secret, hidden, imperceptible, covered)
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APASmart Define. (2015). masked thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/masked/thesaurus/synonyms
ChicagoSmart Define. 2015. "masked thesaurus" https://smartdefine.org/masked/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, masked thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/masked/thesaurus/synonyms>.
MLASmart Define. "masked thesaurus" 14 April 2015. Web. 26 September 2026. <https://smartdefine.org/masked/thesaurus/synonyms>