7 entries under surreptitiously topic. ×

3
secretly(adverb, show, clandestine, slyly, underhandedly)
2
privately(clandestine, quietly, secretly, personally, slyly)
1
quietly(secretly, personally, privately, furtively, slyly)
1
under wraps(expression, clandestine, secretly, slyly, underhandedly)
1
undercover(clandestine, secretly, furtively, slyly, underhandedly)
1
wildcat(clandestine, secretly, furtively, slyly, underhandedly)
0
clandestine(adverb, secretly, slyly, stealthily, underhandedly)
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APASmart Define. (2015). by stealth thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/by_stealth/thesaurus/synonyms
ChicagoSmart Define. 2015. "by stealth thesaurus" https://smartdefine.org/by_stealth/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2015, by stealth thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/by_stealth/thesaurus/synonyms>.
MLASmart Define. "by stealth thesaurus" 13 April 2015. Web. 30 September 2026. <https://smartdefine.org/by_stealth/thesaurus/synonyms>