14 entries under underhandedly topic. ×

7
privately(adverb, clandestine, quietly, secretly, personally)
3
secretly(adverb, clandestine, slyly, surreptitiously)
3
sub rosa(expression, clandestine, quietly, personally, privately)
1
clandestinely(adverb, clandestine, quietly, secretly, personally)
1
furtively(clandestine, quietly, secretly, personally, privately)
1
hush-hush(clandestine, quietly, secretly, personally, privately)
1
slyly(clandestine, quietly, secretly, personally, privately)
1
stealthily(clandestine, quietly, secretly, personally, privately)
1
surreptitiously(clandestine, quietly, secretly, personally, privately)
1
under wraps(expression, clandestine, secretly, slyly)
1
undercover(clandestine, secretly, furtively, slyly)
1
wildcat(clandestine, secretly, furtively, slyly)
0
clandestine(secretly, slyly, surreptitiously)
0
under cover(expression, clandestine, furtively, incognito)
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APASmart Define. (2015). in camera thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/in_camera/thesaurus/synonyms
ChicagoSmart Define. 2015. "in camera thesaurus" https://smartdefine.org/in_camera/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, in camera thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/in_camera/thesaurus/synonyms>.
MLASmart Define. "in camera thesaurus" 14 April 2015. Web. 23 September 2026. <https://smartdefine.org/in_camera/thesaurus/synonyms>