8 entries under impulsively topic. ×

5
impromptu(adverb, impulse, offhand, spontaneously)
4
spontaneously(adverb, freely, impromptu, improv)
2
abruptly
2
impulsively
1
hastily
1
instantaneously
1
rashly
1
reflexively
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APASmart Define. (2015). extemporaneously thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/extemporaneously/thesaurus/synonyms
ChicagoSmart Define. 2015. "extemporaneously thesaurus" https://smartdefine.org/extemporaneously/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, extemporaneously thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/extemporaneously/thesaurus/synonyms>.
MLASmart Define. "extemporaneously thesaurus" 14 April 2015. Web. 29 September 2026. <https://smartdefine.org/extemporaneously/thesaurus/synonyms>