28 entries under adverb topic. ×
| quickly | |
| soon | |
| hastily | |
| rapidly | |
| speedily | |
| ahead | |
| beforehand | |
| fleetly | |
| once | |
| posthaste(adjective, fast) | |
| promptly | |
| swiftly | |
| alertly | |
| anon | |
| directly | |
| ever | |
| expeditiously | |
| formerly | |
| hurriedly | |
| immediately |
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| APA | Smart Define. (2016). slow thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/slow/thesaurus/antonyms |
| Chicago | Smart Define. 2016. "slow thesaurus" https://smartdefine.org/slow/thesaurus/antonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2016, slow thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/slow/thesaurus/antonyms>. |
| MLA | Smart Define. "slow thesaurus" 29 March 2016. Web. 26 September 2026. <https://smartdefine.org/slow/thesaurus/antonyms> |