- Definitions|0
- Thesaurus|98
- Abbreviations|1
| judicious(smart, shrewd, perceptive) | |
| no dummy(expression, ready, quick, skilled, competent) | |
| original(fast, subtle) | |
| penetrative(fast, subtle) | |
| perceptive(smart, shrewd) | |
| perspicacious(smart, shrewd, perceptive) | |
| prompt(ready, quick, skilled, competent, capable) | |
| ready(quick, skilled, competent, capable) | |
| resourceful(fast, subtle) | |
| sharp as a tack(expression, idiom, smart, shrewd, perceptive) | |
| shrewd(smart, perceptive) | |
| skillful(quick, competent, capable) | |
| sly(smart, shrewd, perceptive) | |
| smart as a tack(expression, idiom, fast, subtle) | |
| subtle | |
| teachable(ready, quick, skilled, competent, capable) | |
| unbelieving(adjective, experienced) |
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| APA | Smart Define. (2015). not born yesterday thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/not_born_yesterday/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "not born yesterday thesaurus" https://smartdefine.org/not_born_yesterday/thesaurus/synonyms (accessed September 29, 2026). |
| Harvard | Smart Define 2015, not born yesterday thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/not_born_yesterday/thesaurus/synonyms>. |
| MLA | Smart Define. "not born yesterday thesaurus" 13 April 2015. Web. 29 September 2026. <https://smartdefine.org/not_born_yesterday/thesaurus/synonyms> |