1
contemptibly
1
cunningly
1
on the q.t
1
on the sly
1
or Q.T.
1
privately
1
quietly(noun, adverb)
1
secrecy
1
secretively
1
shrewdly
1
sly
1
sneakingly
1
snidely
1
trickily
1
underhandedly(noun, adverb)
1
vily
0
ably
0
adroitly
0
adulterously
0
ambidextrously
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APASmart Define. (2015). sneakily thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/sneakily/thesaurus/synonyms
ChicagoSmart Define. 2015. "sneakily thesaurus" https://smartdefine.org/sneakily/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, sneakily thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/sneakily/thesaurus/synonyms>.
MLASmart Define. "sneakily thesaurus" 13 April 2015. Web. 25 September 2026. <https://smartdefine.org/sneakily/thesaurus/synonyms>