- Definitions|2
- Thesaurus|1k
- Abbreviations|0
40 entries under simple topic. ×
| impromptu(adjective, adverb, plain, informal) | |
| offhand(noun, adjective, natural, chance) | |
| extempore(adjective, informal, natural, chance) | |
| improvised(adjective, informal, natural, chance) | |
| ad-lib(adjective, informal, natural, casual) | |
| impulsive(noun, adjective, adverb, natural) | |
| off-the-cuff(adjective, adverb, informal, natural) | |
| unplanned(noun, adjective, informal, natural) | |
| unstudied(adjective, natural, casual, impulsive) | |
| casual(adjective, free, natural, chance) | |
| makeshift(adjective, free, casual, crude) | |
| automatic(adjective, passionate, violent, natural) | |
| instinctive(noun, adjective, passionate, violent) | |
| uncontrived(adjective, natural, casual, impulsive) | |
| unprompted(adjective, plain, violent, natural) | |
| involuntary(noun, adjective, passionate, violent) | |
| natural(adjective, casual, impulsive, willing) | |
| unintentional(adjective, natural, chance, casual) | |
| impetuous(noun, adjective, passionate, violent) | |
| unconscious(adjective, natural, casual, impulsive) |
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| APA | Smart Define. (2015). extemporaneous thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/extemporaneous/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "extemporaneous thesaurus" https://smartdefine.org/extemporaneous/thesaurus/synonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2015, extemporaneous thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/extemporaneous/thesaurus/synonyms>. |
| MLA | Smart Define. "extemporaneous thesaurus" 13 April 2015. Web. 26 September 2026. <https://smartdefine.org/extemporaneous/thesaurus/synonyms> |