10 entries under prepared topic. ×

13
offhand(adjective, free, casual, impulsive)
12
extemporaneous(adjective, free, casual, impulsive)
12
extempore(adjective, free, casual, impulsive)
12
impromptu(adjective, free, casual, impulsive)
8
off-the-cuff(adjective, informal, spontaneous, unprepared)
7
ad-lib(adjective, free, fake, casual)
7
improvised(adjective, free, casual, impulsive)
7
unrehearsed(adjective, free, casual, impulsive)
5
spur-of-the-moment(adjective, free, casual, impulsive)
2
snap(adjective, free, casual, impulsive)
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APASmart Define. (2015). extemporary thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/extemporary/thesaurus/synonyms
ChicagoSmart Define. 2015. "extemporary thesaurus" https://smartdefine.org/extemporary/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, extemporary thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/extemporary/thesaurus/synonyms>.
MLASmart Define. "extemporary thesaurus" 14 April 2015. Web. 25 September 2026. <https://smartdefine.org/extemporary/thesaurus/synonyms>