14 entries under spontaneous topic. ×

2
extemporaneous(adjective, free, casual, impulsive)
1
ad-lib(free, casual, impulsive, unprepared)
1
autoschediastic(free, casual, impulsive, unprepared)
1
casual(free, informal, impulsive, unprepared)
1
extemporary(free, casual, impulsive, unprepared)
1
extempore(free, casual, impulsive, unprepared)
1
fake(free, casual, impulsive, unprepared)
1
free(informal, casual, impulsive, unprepared)
1
impromptu(free, casual, impulsive, unprepared)
1
improvised(free, casual, impulsive, unprepared)
1
off-the-cuff(adjective, unprepared, impromptu, unrehearsed)
1
toss off(expression, free, casual, impulsive)
1
toss out(expression, free, casual, impulsive)
0
unscripted(unprepared, impromptu)
11 years ago|5.5k views|share |citing 
APASmart Define. (2015). jamming thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/jamming/thesaurus/synonyms
ChicagoSmart Define. 2015. "jamming thesaurus" https://smartdefine.org/jamming/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, jamming thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/jamming/thesaurus/synonyms>.
MLASmart Define. "jamming thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/jamming/thesaurus/synonyms>