80 entries under expression topic. ×
| secretly mischievous | |
| street smart(adjective, smart, shrewd, clever) | |
| thinking twice(considerate, cautious, prudent, suspicious) | |
| top secret(clandestine, underground, undisclosed) | |
| under false pretense(idiom, clandestine, underground, undisclosed) | |
| under wraps(dishonest, cunning, secret, sneaky) | |
| walking on eggs(considerate, cautious, prudent, suspicious) | |
| watching out(considerate, cautious, prudent, suspicious) | |
| wised up(sharp, smart, intelligent, clever) | |
| handling with kid gloves(idiom, considerate, cautious, prudent) | |
| all sheer | |
| artfully cunning | |
| clever fox | |
| cloak and dagger(idiom, quiet, intriguing) | |
| close as wax(idiom, concealment) | |
| concluding piece | |
| dastardly person(noun, creep, rake, rogue) | |
| deep laid(idiom, cunning) | |
| dirty dealing(dishonest, deceitful, underhanded) | |
| dirty trick |
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| APA | Smart Define. (2016). sly thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/sly/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "sly thesaurus" https://smartdefine.org/sly/thesaurus/synonyms (accessed September 20, 2026). |
| Harvard | Smart Define 2016, sly thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/sly/thesaurus/synonyms>. |
| MLA | Smart Define. "sly thesaurus" 24 March 2016. Web. 20 September 2026. <https://smartdefine.org/sly/thesaurus/synonyms> |