51 entries under expression topic. ×

3
on the sly(idiom, secret, private, hidden)
2
underhand dealing(idiom, concealment)
1
behind one's back(verb, phrasal verb, concealment)
1
by stealth(idiom, concealment)
1
hole and corner(idiom, concealment)
1
in secret
1
long way home(idiom, ambiguous, rambling, incidental)
1
on the QT(adjective, idiom, cunning, deceitful)
1
on the inside(idiom, sharp, smart, intelligent)
1
on the quiet(adjective, idiom, dishonest, cunning)
1
on top of(sharp, smart, intelligent, clever)
1
roundabout unintended(ambiguous, rambling, incidental, circuitous)
1
under wraps(adjective, deceitful, secret, hidden)
1
up on(sharp, smart, intelligent, clever)
1
wised up(sharp, smart, intelligent, clever)
0
arriere pensee(idiom, concealment)
0
behind a screen(idiom, concealment)
0
behind the curtain(idiom, concealment)
0
behind the scenes(idiom, concealment)
0
by implication(idiom, latency implication)
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APASmart Define. (2015). underhand thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/underhand/thesaurus/synonyms
ChicagoSmart Define. 2015. "underhand thesaurus" https://smartdefine.org/underhand/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, underhand thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/underhand/thesaurus/synonyms>.
MLASmart Define. "underhand thesaurus" 13 April 2015. Web. 21 September 2026. <https://smartdefine.org/underhand/thesaurus/synonyms>