27 entries under spontaneous topic. ×

1
made-up(adjective, free, informal, casual)
1
makeshift(adjective, free, informal, casual)
1
unarranged(adjective, unprepared, unplanned, unrehearsed)
1
unscripted(unprepared, impromptu, unplanned, unrehearsed)
0
Band-Aid(unplanned, unpremeditated)
0
fly-by-night(unplanned, unpremeditated)
0
hit-or-miss(unplanned, unpremeditated)
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APASmart Define. (2015). spur-of-the-moment thesaurus. Retrieved October 2, 2026, from https://smartdefine.org/spur-of-the-moment/thesaurus/synonyms
ChicagoSmart Define. 2015. "spur-of-the-moment thesaurus" https://smartdefine.org/spur-of-the-moment/thesaurus/synonyms (accessed October 2, 2026).
HarvardSmart Define 2015, spur-of-the-moment thesaurus, Smart Define, viewed 2 October, 2026, <https://smartdefine.org/spur-of-the-moment/thesaurus/synonyms>.
MLASmart Define. "spur-of-the-moment thesaurus" 13 April 2015. Web. 2 October 2026. <https://smartdefine.org/spur-of-the-moment/thesaurus/synonyms>