8 entries under idiom topic. ×

2
on the sly(noun, expression, adverb, clandestine)
1
in holes and corners(expression, adverb, clandestine, quietly)
1
in strict confidence(expression, quietly, secretly, personally)
1
on the QT(expression, adverb, clandestine, quietly)
1
on the quiet(expression, adverb, clandestine, quietly)
1
under the table(expression, quietly, secretly, personally)
0
by corrupt means
0
by lying
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APASmart Define. (2015). underhandedly thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/underhandedly/thesaurus/synonyms
ChicagoSmart Define. 2015. "underhandedly thesaurus" https://smartdefine.org/underhandedly/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, underhandedly thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/underhandedly/thesaurus/synonyms>.
MLASmart Define. "underhandedly thesaurus" 14 April 2015. Web. 23 September 2026. <https://smartdefine.org/underhandedly/thesaurus/synonyms>