10 entries under impromptu topic. ×

9
freely(adjective, adverb, impulsive, willing)
6
extemporaneously(adverb, impulsively, improv, extemporaneously)
3
ad lib(expression, idiom, adverb, improv)
1
at will(expression, adjective, adverb, impulsive)
0
extempore
0
off the cuff(expression, idiom, improv, extemporaneously)
0
off the top of head(expression, idiom, improv, extemporaneously)
0
off top of head(expression, idiom, improv, extemporaneously)
0
without preparation(expression, improv, extemporaneously)
0
without rehearsal(expression, improv, extemporaneously)
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APASmart Define. (2015). spontaneously thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/spontaneously/thesaurus/synonyms
ChicagoSmart Define. 2015. "spontaneously thesaurus" https://smartdefine.org/spontaneously/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, spontaneously thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/spontaneously/thesaurus/synonyms>.
MLASmart Define. "spontaneously thesaurus" 14 April 2015. Web. 23 September 2026. <https://smartdefine.org/spontaneously/thesaurus/synonyms>