- Definitions|2
- Thesaurus|1.5k
- Abbreviations|0
46 entries under unplanned topic. ×
| offhand(adjective, adverb, free, simple, fake) | |
| unprepared(adjective, adverb, free, ready, spontaneous) | |
| extemporaneous(adjective, adverb, simple, informal, natural) | |
| extempore(adjective, adverb, free, simple, fake) | |
| improvised(adjective, free, simple, fake, informal) | |
| ad-lib(noun, adjective, adverb, free, simple) | |
| off-the-cuff(adjective, adverb, simple, informal, natural) | |
| casual(adjective, free, simple, fake, natural) | |
| unstudied(adjective, adverb, free, simple, fake) | |
| improviso(adjective, adverb, free, impulse, spontaneous) | |
| ad hoc(expression, adjective, idiom, free) | |
| ad libitum(expression, adjective, idiom, adverb, informal) | |
| extemporized(adjective, adverb, informal, unprepared) | |
| improvise(verb, adjective, informal, extemporize) | |
| impulsive(adjective, adverb, simple, natural, chance) | |
| unarranged(adjective, spontaneous, unprepared, unrehearsed) | |
| random(chance, accidental, unintended, unpremeditated) | |
| unscripted(adjective, adverb, mock, affected, spontaneous) | |
| winged(adjective, adverb, informal, unqualified, unprepared) | |
| at will(expression, adverb, informal, extemporize) |
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| APA | Smart Define. (2016). impromptu thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/impromptu/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "impromptu thesaurus" https://smartdefine.org/impromptu/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2016, impromptu thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/impromptu/thesaurus/synonyms>. |
| MLA | Smart Define. "impromptu thesaurus" 28 January 2016. Web. 24 September 2026. <https://smartdefine.org/impromptu/thesaurus/synonyms> |