80 entries under expression topic. ×

0
on the lookout(idiom, wise, cautious, prudent)
0
quick on the uptake(idiom, keen, smart, shrewd)
0
quick on trigger(idiom, smart, bright, intelligent)
0
sharp as a tack(idiom, keen, smart, shrewd)
0
sly boots(idiom, cunning)
0
sotto voce(idiom, concealment)
0
sub rosa(idiom, concealment)
0
under cover
0
under the rose(idiom, concealment)
0
under the table(idiom, concealment)
0
up on(sharp, smart, intelligent, clever)
0
up to snuff(idiom, cunning)
0
urge oneself
0
use cunning
0
use trickery
0
wise man
0
with bated breath(idiom, concealment)
0
with closed doors(idiom, concealment)
0
with evil intention
0
with it(smart, shrewd, clever)
10 years ago|25k views|share |citing 
APASmart Define. (2016). sly thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/sly/thesaurus/synonyms
ChicagoSmart Define. 2016. "sly thesaurus" https://smartdefine.org/sly/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2016, sly thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/sly/thesaurus/synonyms>.
MLASmart Define. "sly thesaurus" 24 March 2016. Web. 20 September 2026. <https://smartdefine.org/sly/thesaurus/synonyms>