50 entries under underhanded topic. ×

1
incognito(secret, hidden, clandestine, covered)
1
obscured(separate, secret, hidden, concealed)
1
shifty(dishonest, cunning, deceitful, sneaky)
1
shrouded(adjective, separate, secret, hidden, clandestine)
1
sneaking(dishonest, cunning, deceitful, secret, private)
1
tricky(dishonest, cunning, deceitful, sneaky)
1
under the table(expression, hidden, clandestine, quietly)
1
veiled(secret, private, hidden, clandestine)
1
wily(dishonest, cunning, deceitful, sneaky)
0
crooked(dishonest, cunning, deceitful, sneaky)
0
deceitful(dishonest, sneaky)
0
deceptive(dishonest, cunning, deceitful, sneaky)
0
devious(dishonest, cunning, deceitful, sneaky)
0
dirty-dealing(dishonest, cunning, deceitful, sneaky)
0
dirty dealing(expression, dishonest, deceitful)
0
dishonest(cunning, deceitful, sneaky, underhand)
0
dishonorable(dishonest, cunning, deceitful, sneaky)
0
double-crossing(dishonest, cunning, deceitful, sneaky)
0
duplicitous(dishonest, cunning, deceitful, sneaky)
0
indirect(dishonest, cunning, deceitful, sneaky)
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APASmart Define. (2015). hush-hush thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/hush-hush/thesaurus/synonyms
ChicagoSmart Define. 2015. "hush-hush thesaurus" https://smartdefine.org/hush-hush/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2015, hush-hush thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/hush-hush/thesaurus/synonyms>.
MLASmart Define. "hush-hush thesaurus" 13 April 2015. Web. 30 September 2026. <https://smartdefine.org/hush-hush/thesaurus/synonyms>