Synonyms|145Antonyms|37|Broader|4Narrower|0Related|81

15 entries under noun topic. ×

11
furtively(adverb, clandestine, quietly, secretly)
8
stealthily(adverb, clandestine, quietly, secretly)
7
clandestinely(adverb, clandestine, quietly, secretly)
6
on the sly(expression, idiom, adverb, cunning)
6
surreptitiously(adverb, clandestine, quietly, secretly)
4
covertly(adverb, quietly, secretly, personally)
4
quietly(adverb, secretly, personally, privately)
4
slily
3
sly
3
underhandedly(adverb, clandestine, quietly, secretly)
2
sneakily(adverb, secretly, furtively, deceitfully)
1
on the q.t
1
or Q.T.
0
loopy
0
on the side
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APASmart Define. (2015). slyly thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/slyly/thesaurus/synonyms
ChicagoSmart Define. 2015. "slyly thesaurus" https://smartdefine.org/slyly/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, slyly thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/slyly/thesaurus/synonyms>.
MLASmart Define. "slyly thesaurus" 13 April 2015. Web. 26 September 2026. <https://smartdefine.org/slyly/thesaurus/synonyms>