23 entries under spontaneous topic. ×

4
extemporaneous(adjective, unprepared, unplanned, unrehearsed)
4
impromptu(adjective, unprepared, unplanned, unrehearsed)
3
ad lib(expression, adjective, unprepared, unplanned)
3
improvised(adjective, unprepared, unplanned, unrehearsed)
3
makeshift(adjective, unplanned, unpremeditated)
3
unplanned(adjective, unprepared, unrehearsed, unpremeditated)
3
unpremeditated(adjective, unprepared, unplanned, unrehearsed)
3
unprepared(adjective, unplanned, unrehearsed, unpremeditated)
3
unstudied(adjective, unprepared, unplanned, unrehearsed)
2
ad-lib(unprepared, unplanned, unrehearsed, unpremeditated)
2
extempore(adjective, unprepared, unplanned, unrehearsed)
2
extemporized(unprepared, unplanned, unrehearsed, unpremeditated)
2
hit-or-miss(unplanned, unpremeditated)
2
offhand(adjective, unprepared, unplanned, unrehearsed)
1
spur-of-the-moment(adjective, unprepared, unplanned, unrehearsed)
0
Band-Aid(unplanned, unpremeditated)
0
ad hoc(expression, unprepared, unplanned, unrehearsed)
0
autoschediastic(unplanned, unpremeditated)
0
fly-by-night(unplanned, unpremeditated)
0
improviso(unprepared, unplanned, unrehearsed, unpremeditated)
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APASmart Define. (2015). unarranged thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/unarranged/thesaurus/synonyms
ChicagoSmart Define. 2015. "unarranged thesaurus" https://smartdefine.org/unarranged/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2015, unarranged thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/unarranged/thesaurus/synonyms>.
MLASmart Define. "unarranged thesaurus" 13 April 2015. Web. 30 September 2026. <https://smartdefine.org/unarranged/thesaurus/synonyms>