| nonplus(verb, shock, confuse, shake, confound) | |
| offset | |
| originate | |
| outrage(verb, upset, bother, disturb, provoke) | |
| outset | |
| overcome(verb, upset, disturb, shock, agitate) | |
| rock(verb, upset, disturb, push, shock) | |
| rouse(verb, upset, bother, disturb, encourage) | |
| saltation(noun, verb) | |
| scarify(verb, worry, fear, fill, scare) | |
| signal(verb, alarm) | |
| skedaddle(rush, dash, bound) | |
| skip(rush, dash, jump, bound, leap) | |
| sound the alarm(expression, idiom) | |
| stampede(scare, become, freak) | |
| starting | |
| startling | |
| unman | |
| warn | |
| catch unawares(verb, expression, idiom, take) |
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| APA | Smart Define. (2016). startle thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/startle/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "startle thesaurus" https://smartdefine.org/startle/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2016, startle thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/startle/thesaurus/synonyms>. |
| MLA | Smart Define. "startle thesaurus" 26 February 2016. Web. 22 September 2026. <https://smartdefine.org/startle/thesaurus/synonyms> |