73 entries under impulsive topic. ×

1
unavoidable(adjective, simple, natural, casual)
1
unbidden(adjective, simple, natural, casual)
1
uncompelled(adjective, simple, natural, casual)
1
unconstrained(adjective, simple, natural, casual)
1
uncontrolled(adjective, simple, natural, casual)
1
unforced(adjective, simple, natural, casual)
1
unpremediated(adjective, simple, natural, casual)
1
unsophisticated(adjective, simple, poor, natural, casual)
1
up front(expression, adjective, simple, natural, casual)
1
willing(adjective, simple, natural, casual)
1
without restraint(expression, adverb, informal, extemporize)
0
artless(impromptu, unprompted, spur-of-the-moment)
0
unstructured(unprompted, spur-of-the-moment)
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APASmart Define. (2015). extemporaneous thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/extemporaneous/thesaurus/synonyms
ChicagoSmart Define. 2015. "extemporaneous thesaurus" https://smartdefine.org/extemporaneous/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2015, extemporaneous thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/extemporaneous/thesaurus/synonyms>.
MLASmart Define. "extemporaneous thesaurus" 13 April 2015. Web. 30 September 2026. <https://smartdefine.org/extemporaneous/thesaurus/synonyms>