81 entries under casual topic. ×
| spontaneous(noun, adjective, free, fake, informal) | |
| unpremeditated(noun, adjective, free, chance) | |
| accidental(adjective, careless, chance, planned) | |
| unintentional(adjective, simple, natural, chance) | |
| chance(adjective, careless, planned, erratic) | |
| fortuitous(adjective, chance, planned, erratic) | |
| random(adjective, insignificant, chance, irregular) | |
| impromptu(adjective, free, simple, fake, informal) | |
| haphazard(adjective, insignificant, chance, irregular) | |
| unwitting(adjective, careless, planned, reckless) | |
| unprepared(adjective, free, ready, unqualified) | |
| extemporaneous(noun, adjective, simple, informal, natural) | |
| offhand(noun, adjective, free, simple, fake) | |
| incidental(adjective, chance, random, haphazard) | |
| unstudied(adjective, free, simple, fake, natural) | |
| extempore(adjective, free, simple, fake, informal) | |
| impetuous(noun, adjective, simple, natural) | |
| impulsive(noun, adjective, simple, violent, natural) | |
| involuntary(noun, adjective, simple, natural) | |
| snap(noun, adjective, free, informal) |
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| APA | Smart Define. (2015). unplanned thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/unplanned/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "unplanned thesaurus" https://smartdefine.org/unplanned/thesaurus/synonyms (accessed September 30, 2026). |
| Harvard | Smart Define 2015, unplanned thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/unplanned/thesaurus/synonyms>. |
| MLA | Smart Define. "unplanned thesaurus" 10 April 2015. Web. 30 September 2026. <https://smartdefine.org/unplanned/thesaurus/synonyms> |