22 entries under adverb topic. ×
| nowadays | |
| currently(future, before, previously, formerly) | |
| never | |
| already | |
| presently | |
| today | |
| directly | |
| forthwith | |
| here | |
| hither | |
| immediately | |
| instantaneously | |
| instantly | |
| now | |
| openly | |
| promptly | |
| shortly | |
| simultaneously | |
| soon | |
| straight |
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| APA | Smart Define. (2016). once thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/once/thesaurus/antonyms |
| Chicago | Smart Define. 2016. "once thesaurus" https://smartdefine.org/once/thesaurus/antonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2016, once thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/once/thesaurus/antonyms>. |
| MLA | Smart Define. "once thesaurus" 30 March 2016. Web. 26 September 2026. <https://smartdefine.org/once/thesaurus/antonyms> |