70 entries under adjective topic. ×
| precocious(smart, ahead) | |
| radiant | |
| serious(sharp, intelligent) | |
| severe | |
| shiny | |
| skilled | |
| slick(smart, clever) | |
| snappy | |
| splendid | |
| tricky |
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| APA | Smart Define. (2016). stupid thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/stupid/thesaurus/antonyms |
| Chicago | Smart Define. 2016. "stupid thesaurus" https://smartdefine.org/stupid/thesaurus/antonyms (accessed September 28, 2026). |
| Harvard | Smart Define 2016, stupid thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/stupid/thesaurus/antonyms>. |
| MLA | Smart Define. "stupid thesaurus" 2 April 2016. Web. 28 September 2026. <https://smartdefine.org/stupid/thesaurus/antonyms> |