- Definitions|2
- Thesaurus|1k
- Abbreviations|0
55 entries under impromptu topic. ×
| on-the-spot(adjective, free, casual, impulsive, spontaneous) | |
| unartful(adjective, simple, natural, casual, impulsive) | |
| unavoidable(adjective, simple, natural, casual, impulsive) | |
| unbidden(adjective, simple, natural, casual, impulsive) | |
| uncompelled(adjective, simple, natural, casual, impulsive) | |
| unconstrained(adjective, simple, natural, casual, impulsive) | |
| uncontrolled(adjective, simple, natural, casual, impulsive) | |
| unpremediated(adjective, simple, natural, casual, impulsive) | |
| willing(adjective, simple, natural, casual, impulsive) | |
| artless(impulsive, unprompted, spur-of-the-moment) | |
| naive | |
| off the hip(expression, idiom) | |
| off the top of head(expression, idiom) | |
| throwaway | |
| without preparation |
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| APA | Smart Define. (2015). extemporaneous thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/extemporaneous/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "extemporaneous thesaurus" https://smartdefine.org/extemporaneous/thesaurus/synonyms (accessed September 29, 2026). |
| Harvard | Smart Define 2015, extemporaneous thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/extemporaneous/thesaurus/synonyms>. |
| MLA | Smart Define. "extemporaneous thesaurus" 13 April 2015. Web. 29 September 2026. <https://smartdefine.org/extemporaneous/thesaurus/synonyms> |