25 entries under secret topic. ×

1
under-the-table(hidden, underground, sneaky, underhanded)
1
under wraps(expression, hidden, underhanded, covered)
1
underhand(hidden, clandestine, underground, sneaky)
1
underhanded(hidden, clandestine, underground, sneaky)
0
unsuspected(hidden, clandestine, underground, underhanded)
<12>
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APASmart Define. (2015). masked thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/masked/thesaurus/synonyms
ChicagoSmart Define. 2015. "masked thesaurus" https://smartdefine.org/masked/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, masked thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/masked/thesaurus/synonyms>.
MLASmart Define. "masked thesaurus" 14 April 2015. Web. 28 September 2026. <https://smartdefine.org/masked/thesaurus/synonyms>