37 entries under sudden topic. ×
| reckless(adjective, violent, fast, quick) | |
| rushed(adjective, quick, summary, unexpected, instant) | |
| urgent(adjective, quick, speedy, hasty) | |
| without warning(expression, adjective, violent, fast, quick) | |
| brash(adjective, quick, speedy, hurried) | |
| brusque(adjective, irritable, tetchy, snippy) | |
| direct(adjective, prompt, fast, straight, spontaneous) | |
| flashing(adjective, hot, quick, speedy, immediate) | |
| fleeting(adjective, hot, quick, speedy, hasty) | |
| impulsive(adjective, quick, abrupt, hasty, unexpected) | |
| meteoric(adjective, brief) | |
| quickening | |
| spontaneous | |
| unanticipated(adjective, violent, fast, quick, unexpected) | |
| unexpected(adjective, violent, fast, quick, summary) | |
| unforeseen(adjective, violent, fast, quick, abrupt) | |
| brilliant(adjective, quick, flexible, timely, swift) |
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| APA | Smart Define. (2016). rapid thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/rapid/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "rapid thesaurus" https://smartdefine.org/rapid/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2016, rapid thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/rapid/thesaurus/synonyms>. |
| MLA | Smart Define. "rapid thesaurus" 1 April 2016. Web. 25 September 2026. <https://smartdefine.org/rapid/thesaurus/synonyms> |