Synonyms|96Antonyms|3|Broader|0Narrower|0Related|4

30 entries under unprepared topic. ×

4
impromptu(adjective, adverb, free, spontaneous)
3
ad lib(expression, adjective, free, informal, mock)
3
extemporaneous(adjective, free, casual, spontaneous)
2
by ear(expression, adjective, free, fake, informal)
2
improv(adjective, free, fake, informal, mock)
2
improvisatory(adjective, free, fake, informal, casual)
2
improvised(adjective, free, spontaneous, impromptu)
2
on-the-spot(adjective, free, fake, informal, casual)
2
on impulse(expression, adjective, free, fake, informal)
2
spontaneous(adjective, free, casual, unplanned)
2
spur-of-the-moment(adjective, free, spontaneous, unplanned)
2
tossed off(expression, adjective, free, informal, mock)
2
unpremeditated(adjective, free, casual, spontaneous)
1
ad-lib(adjective, spontaneous, impromptu, unplanned)
1
autoschediastic(adjective, free, casual, impulsive, spontaneous)
1
casual(adjective, free, informal, impulsive)
1
extemporary(adjective, free, fake, casual, impulsive)
1
extemporized(adjective, fake, spontaneous, unplanned)
1
faked(adjective, fake, mock, affected)
1
free(adjective, informal, casual, impulsive)
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APASmart Define. (2015). improviso thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/improviso/thesaurus/synonyms
ChicagoSmart Define. 2015. "improviso thesaurus" https://smartdefine.org/improviso/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, improviso thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/improviso/thesaurus/synonyms>.
MLASmart Define. "improviso thesaurus" 14 April 2015. Web. 25 September 2026. <https://smartdefine.org/improviso/thesaurus/synonyms>