0
filch
0
foul
0
frivolous
0
gloomily
0
gradual
0
guilefully
0
hand
0
hermetically
0
hole-and-corner
0
holes
0
hushedly
0
illicitly
0
imperceptibly
0
imprudent
0
in on the ground floor(expression, idiom, confidentially)
0
in one's sleeve(expression, idiom, concealment)
0
in secrecy(expression, idiom)
0
incommunicably
0
incommunicatively
0
inconspicuously
10 years ago|7k views|share |citing 
APASmart Define. (2016). secretly thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/secretly/thesaurus/synonyms
ChicagoSmart Define. 2016. "secretly thesaurus" https://smartdefine.org/secretly/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, secretly thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/secretly/thesaurus/synonyms>.
MLASmart Define. "secretly thesaurus" 19 February 2016. Web. 25 September 2026. <https://smartdefine.org/secretly/thesaurus/synonyms>