- Definitions|1
- Thesaurus|564
- Abbreviations|0
| improvisational | |
| improvisatorial | |
| improvise(informal, unplanned, extemporize, off-the-cuff, extemporise) | |
| inevitable(impulsive, unprompted, spur-of-the-moment) | |
| inexperienced | |
| involuntary(impulsive, unprompted, spur-of-the-moment) | |
| irresistible(impulsive, unprompted, spur-of-the-moment) | |
| lib | |
| napping(unqualified, unsuspecting, unready) | |
| naturally | |
| nonchalant | |
| not prepared(expression, unqualified, unsuspecting, unready) | |
| not ready(expression, unqualified, unsuspecting, unready) | |
| not rehearsed(adjective, spontaneous) | |
| nuncupative | |
| off the top of one's head(adjective, spontaneous) | |
| off top of head(expression, idiom, informal, impulsive, snap) | |
| rude | |
| simple(impulsive, unprompted, spur-of-the-moment) | |
| spontaneously |
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| APA | Smart Define. (2015). unrehearsed thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/unrehearsed/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "unrehearsed thesaurus" https://smartdefine.org/unrehearsed/thesaurus/synonyms (accessed September 30, 2026). |
| Harvard | Smart Define 2015, unrehearsed thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/unrehearsed/thesaurus/synonyms>. |
| MLA | Smart Define. "unrehearsed thesaurus" 14 April 2015. Web. 30 September 2026. <https://smartdefine.org/unrehearsed/thesaurus/synonyms> |