- Definitions|1
- Thesaurus|291
- Abbreviations|0
| curtness | |
| expeditiousness | |
| gruffness | |
| hotheadedness(noun, rashness, impulsiveness) | |
| impetuosity(noun, thoughtlessness, rashness, spontaneity, impulsiveness) | |
| impetuousness(noun, rashness, impulsiveness) | |
| instantaneity(instantaneity, earliness) | |
| promptness | |
| rapidity(noun, thoughtlessness, quickness, abruptness, impulsiveness) | |
| shortness | |
| spontaneity(noun, thoughtlessness, rashness, impulsiveness, impetuosity) | |
| steepness | |
| sudden | |
| velocity(noun, earliness, transientness) | |
| abrupt | |
| amazement(noun, shock, disappointment, wonder, revelation) | |
| astonishment(noun, shock, disappointment, wonder, revelation) | |
| astoundment(noun, shock, disappointment, surprise, wonder) | |
| attack(noun, shock, disappointment, wonder, revelation) | |
| awe(noun, shock, disappointment, wonder, revelation) |
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| APA | Smart Define. (2015). suddenness thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/suddenness/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "suddenness thesaurus" https://smartdefine.org/suddenness/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2015, suddenness thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/suddenness/thesaurus/synonyms>. |
| MLA | Smart Define. "suddenness thesaurus" 13 April 2015. Web. 22 September 2026. <https://smartdefine.org/suddenness/thesaurus/synonyms> |