- Definitions|2
- Thesaurus|1k
- Abbreviations|0
43 entries under noun topic. ×
| spontaneous(adjective, plain, impulsive, willing) | |
| offhand(adjective, simple, natural, chance) | |
| unpremeditated(adjective, impulsive, planned, impulse) | |
| spur-of-the-moment(adjective, impulsive, prepared, spontaneous) | |
| impulsive(adjective, adverb, simple, natural) | |
| unplanned(adjective, simple, informal, natural) | |
| snap(adjective, free, casual, impulsive) | |
| instinctive(adjective, simple, passionate, violent) | |
| rash(adjective, thoughtless, impulsive, impetuous) | |
| sudden(adjective, thoughtless, impetuous, unwary) | |
| immediate(adjective, free, casual, impulsive) | |
| involuntary(adjective, simple, passionate, violent) | |
| precipitate(thoughtless, impetuous, unwary) | |
| quick(thoughtless, impetuous, unwary, transientness) | |
| impetuous(adjective, simple, passionate, violent) | |
| unconsidered(thoughtless, impetuous, unwary) | |
| unpredictable(thoughtless, impetuous, unwary) | |
| devil-may-care(thoughtless, impetuous, unwary) | |
| emotional(thoughtless, impetuous, unwary) | |
| headlong(thoughtless, impetuous, unwary) |
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| APA | Smart Define. (2015). extemporaneous thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/extemporaneous/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "extemporaneous thesaurus" https://smartdefine.org/extemporaneous/thesaurus/synonyms (accessed September 30, 2026). |
| Harvard | Smart Define 2015, extemporaneous thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/extemporaneous/thesaurus/synonyms>. |
| MLA | Smart Define. "extemporaneous thesaurus" 13 April 2015. Web. 30 September 2026. <https://smartdefine.org/extemporaneous/thesaurus/synonyms> |