| dopey | |
| dorky | |
| drawn-out | |
| dumb | |
| dunderheaded | |
| empty-headed | |
| fickle | |
| glut(noun, verb, choke, oversupply) | |
| gorge(noun, verb, eat) | |
| gormless | |
| half-witted | |
| inconstant | |
| insecure | |
| laggard | |
| lagging | |
| lamebrain | |
| leisurely | |
| movable | |
| poky | |
| slowly |
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| APA | Smart Define. (2016). fast thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/fast/thesaurus/antonyms |
| Chicago | Smart Define. 2016. "fast thesaurus" https://smartdefine.org/fast/thesaurus/antonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2016, fast thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/fast/thesaurus/antonyms>. |
| MLA | Smart Define. "fast thesaurus" 1 April 2016. Web. 23 September 2026. <https://smartdefine.org/fast/thesaurus/antonyms> |