45 entries under adverb topic. ×

3
obscurely
3
on the q.t
3
or Q.T.
2
quietly
2
sneakily
1
allusively
1
anonymously
1
bindingly
1
by stealth(expression, idiom, show, quietly)
1
enshroudedly
1
imperceptibly
1
privily
1
under cover(expression, idiom, show, furtively)
1
undiscernibly
0
behind one's back
0
blindly
0
cagily
0
cautiously
0
closely
0
craftily
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APASmart Define. (2015). covertly thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/covertly/thesaurus/synonyms
ChicagoSmart Define. 2015. "covertly thesaurus" https://smartdefine.org/covertly/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, covertly thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/covertly/thesaurus/synonyms>.
MLASmart Define. "covertly thesaurus" 13 April 2015. Web. 24 September 2026. <https://smartdefine.org/covertly/thesaurus/synonyms>