30 entries under impulsive topic. ×

2
impromptu(adjective, adverb, free, spontaneous)
2
improvised(free, casual, impromptu, unrehearsed)
2
offhand(adjective, adverb, free, spontaneous)
2
unrehearsed(adjective, adverb, free, spontaneous)
1
according to pleasure(expression, informal, unplanned, extemporaneous)
1
ad-lib(adjective, adverb, free, casual)
1
as one thinks best(expression, informal, unplanned, extemporaneous)
1
as one wishes(expression, informal, unplanned, extemporaneous)
1
at will(expression, informal, unplanned, extemporaneous)
1
automatic(free, casual, spontaneous, unprepared)
1
autoschediastic(free, casual, spontaneous, unprepared)
1
casual(free, spontaneous, unprepared, impromptu)
1
expedient(free, informal, casual, snap)
1
extemporaneous(adjective, adverb, spontaneous, impromptu)
1
extemporary(free, casual, spontaneous, unprepared)
1
free(casual, spontaneous, unprepared, impromptu)
1
immediate(free, informal, casual, snap)
1
improv(free, informal, casual, snap)
1
improvisatory(free, informal, casual, snap)
1
informal(free, casual, snap, unprepared)
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APASmart Define. (2015). made-up thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/made-up/thesaurus/synonyms
ChicagoSmart Define. 2015. "made-up thesaurus" https://smartdefine.org/made-up/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, made-up thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/made-up/thesaurus/synonyms>.
MLASmart Define. "made-up thesaurus" 13 April 2015. Web. 21 September 2026. <https://smartdefine.org/made-up/thesaurus/synonyms>