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

25 entries under informal topic. ×

3
ad lib(expression, adjective, free, mock)
3
offhand(adjective, free, casual, spontaneous)
2
by ear(expression, adjective, free, fake)
2
improv(adjective, free, fake, mock)
2
improvisatory(adjective, free, fake, casual)
2
makeshift(adjective, free, casual, spontaneous)
2
on-the-spot(adjective, free, fake, casual)
2
on impulse(expression, adjective, free, fake)
2
tossed off(expression, adjective, free, mock)
2
unstudied(adjective, free, casual, spontaneous)
1
at first glance(expression, idiom, free, casual)
1
automatic(adjective, free, casual, impulsive)
1
casual(adjective, free, impulsive, unprepared)
1
expedient(adjective, free, casual, snap)
1
free(adjective, casual, impulsive, unprepared)
1
immediate(adjective, free, casual, snap)
1
jamming(adjective, free, casual, snap)
1
made-up(adjective, free, casual, spontaneous)
1
off the top of head(expression, idiom, free, casual)
1
snap(adjective, free, casual, impulsive)
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APASmart Define. (2015). improviso thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/improviso/thesaurus/synonyms
ChicagoSmart Define. 2015. "improviso thesaurus" https://smartdefine.org/improviso/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, improviso thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/improviso/thesaurus/synonyms>.
MLASmart Define. "improviso thesaurus" 14 April 2015. Web. 24 September 2026. <https://smartdefine.org/improviso/thesaurus/synonyms>