43 entries under unplanned topic. ×

5
impromptu(adjective, adverb, informal, unprepared)
5
improvised(adjective, informal, spontaneous, unrehearsed)
4
ad lib(expression, adjective, idiom, spontaneous, unprepared)
4
unpremeditated(adjective, spontaneous, unprepared, unrehearsed)
4
unprepared(adjective, informal, spontaneous, unrehearsed)
4
unstudied(adjective, spontaneous, unprepared, unrehearsed)
3
makeshift(adjective, informal, spontaneous, unpremeditated)
2
ad-lib(adjective, fake, informal, spontaneous, unprepared)
2
off the cuff(expression, adjective, idiom, unprepared)
2
offhand(adjective, spontaneous, unprepared, unrehearsed)
2
spontaneous(adjective, informal, unprepared, unrehearsed)
2
unarranged(spontaneous, unprepared, unrehearsed, unpremeditated)
2
unrehearsed(adjective, informal, spontaneous, unprepared)
1
according to pleasure(expression, adjective, informal, extemporize)
1
ad hoc(expression, idiom, informal, spontaneous, unprepared)
1
ad libitum(expression, adjective, informal, extemporize)
1
as one thinks best(expression, adjective, informal, extemporize)
1
as one wishes(expression, adjective, informal, extemporize)
1
at will(expression, adjective, informal, extemporize)
1
dashed off(expression, fake, unprepared, unrehearsed)
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APASmart Define. (2015). extemporized thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/extemporized/thesaurus/synonyms
ChicagoSmart Define. 2015. "extemporized thesaurus" https://smartdefine.org/extemporized/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2015, extemporized thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/extemporized/thesaurus/synonyms>.
MLASmart Define. "extemporized thesaurus" 13 April 2015. Web. 30 September 2026. <https://smartdefine.org/extemporized/thesaurus/synonyms>