- Definitions|2
- Thesaurus|1.5k
- Abbreviations|0
| Band-Aid(substitute, spontaneous, temporary, unplanned, unpremeditated) | |
| Hollywood(mock, affected) | |
| accelerated | |
| acceleration | |
| accidental(chance, unplanned, unintended, unpremeditated) | |
| accidentally | |
| acute | |
| adventitious(chance, unplanned, accidental, unintended, unpremeditated) | |
| affected | |
| aleatory(accidental, unintended) | |
| artificial(mock, affected) | |
| artless(impulsive, unprompted, spur-of-the-moment) | |
| be | |
| brashly | |
| brusque | |
| by chance(expression, chance, unplanned, unpremeditated) | |
| campy(mock, affected) | |
| cast | |
| cavalier | |
| chance(unplanned, unpremeditated) |
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| APA | Smart Define. (2016). impromptu thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/impromptu/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "impromptu thesaurus" https://smartdefine.org/impromptu/thesaurus/synonyms (accessed September 21, 2026). |
| Harvard | Smart Define 2016, impromptu thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/impromptu/thesaurus/synonyms>. |
| MLA | Smart Define. "impromptu thesaurus" 28 January 2016. Web. 21 September 2026. <https://smartdefine.org/impromptu/thesaurus/synonyms> |