0
ambivalently
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artfully
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backhandedly
0
backstage
0
behind closed doors
0
behind one's back(adverb, deceitfully)
0
burdened
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by deceit
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carefully
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clandestine
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collusively
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confidential
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confidentially
0
conspiratorially
0
coolly
0
cop
0
covert
0
cravenly
0
culpably
0
dastardly
11 years ago|2.1k views|share |citing 
APASmart Define. (2015). sneakily thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/sneakily/thesaurus/synonyms
ChicagoSmart Define. 2015. "sneakily thesaurus" https://smartdefine.org/sneakily/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, sneakily thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/sneakily/thesaurus/synonyms>.
MLASmart Define. "sneakily thesaurus" 13 April 2015. Web. 26 September 2026. <https://smartdefine.org/sneakily/thesaurus/synonyms>