58 entries under casual topic. ×

18
extemporaneous(adjective, simple, informal, natural, chance)
12
impromptu(adjective, free, simple, fake, informal)
8
extempore(adjective, free, simple, fake, informal)
8
offhand(adjective, free, simple, fake, natural)
7
ad-lib(adjective, adverb, free, simple, fake)
7
extemporary(adjective, free, impulsive, prepared)
6
off-the-cuff(adjective, adverb, simple, informal, natural)
6
unplanned(adjective, free, simple, fake, informal)
6
unpremeditated(adjective, free, impulsive, impulse)
5
snap(adjective, free, impulsive, impulse)
4
ad hoc(expression, adjective, free, unplanned)
4
impulsive(adjective, adverb, simple, natural, chance)
4
unstudied(adjective, free, simple, fake, natural)
3
improvisatory(adjective, free, impulsive, impulse)
2
automatic(adjective, free, simple, fake, natural)
2
free(adjective, simple, fake, natural)
2
uncontrived(adjective, simple, natural, impulsive)
1
autoschediastic(adjective, free, impulsive, spontaneous)
1
break loose(expression, adjective, simple, natural)
1
by ear(expression, adverb, free, impromptu)
<123>
11 years ago|3.9k views|share |citing 
APASmart Define. (2015). improvised thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/improvised/thesaurus/synonyms
ChicagoSmart Define. 2015. "improvised thesaurus" https://smartdefine.org/improvised/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, improvised thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/improvised/thesaurus/synonyms>.
MLASmart Define. "improvised thesaurus" 13 April 2015. Web. 28 September 2026. <https://smartdefine.org/improvised/thesaurus/synonyms>