37 entries under sudden topic. ×
| quick(adjective, direct, keen, express, prompt) | |
| swift(adjective, direct, express, prompt, energetic) | |
| fast(adjective, adverb, direct, express, prompt) | |
| hasty(adjective, moving, express, prompt, violent) | |
| brisk(adjective, sharp, lively, hot, fast) | |
| immediate(adjective, keen, express, prompt, energetic) | |
| hurried(adjective, express, prompt, energetic, violent) | |
| instantaneous(adjective, fast, precise, responsive, early) | |
| abrupt(adjective, violent, fast, quick, speedy) | |
| precipitate(verb, adjective, prompt, fast, quick) | |
| instant(adjective, prompt, fast, precise, quick) | |
| accelerated(adjective, direct, express, prompt, hot) | |
| headlong(adjective, violent, fast, quick, abrupt) | |
| sharp(adjective, keen, intense, energetic, lively) | |
| impetuous(adjective, violent, fast, quick, abrupt) | |
| precipitous(adjective, unusual, fast, quick, abrupt) | |
| out of the blue | |
| rushing(adjective, violent, fast, quick, effective) | |
| acute(adjective, sharp, energetic, lively, alert) | |
| rash(adjective, violent, fast, quick, abrupt) |
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| APA | Smart Define. (2016). rapid thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/rapid/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "rapid thesaurus" https://smartdefine.org/rapid/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2016, rapid thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/rapid/thesaurus/synonyms>. |
| MLA | Smart Define. "rapid thesaurus" 1 April 2016. Web. 24 September 2026. <https://smartdefine.org/rapid/thesaurus/synonyms> |