Synonyms|312Antonyms|17|Broader|5Narrower|0Related|26

59 entries under impromptu topic. ×

1
autoschediastic(free, fake, casual, impulsive, spontaneous)
1
break loose(expression, adjective, simple, natural, casual)
1
by ear(expression, adverb, free, casual, offhand)
1
casual(adjective, free, simple, fake, natural)
1
down(adjective, simple, natural, casual, impulsive)
1
expedient(free, casual, impulsive, spontaneous, unprepared)
1
extemporaneously(adverb, manner, offhand, spontaneously)
1
free(adjective, simple, fake, natural, casual)
1
free spirited(expression, adjective, simple, natural, casual)
1
from the hip(expression, adjective, idiom, simple, natural)
1
immediate(free, casual, impulsive, spontaneous, unprepared)
1
impetuous(adjective, simple, passionate, violent, natural)
1
improvisatory(free, fake, casual, impulsive, spontaneous)
1
improviso(free, spontaneous, unprepared, unplanned)
1
impulsive(adjective, adverb, simple, natural, casual)
1
inevitable(adjective, simple, natural, casual, impulsive)
1
informal(adjective, free, casual, impulsive, spontaneous)
1
involuntary(adjective, simple, passionate, violent, natural)
1
irresistible(adjective, simple, natural, casual, impulsive)
1
jamming(free, casual, impulsive, spontaneous, unprepared)
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ChicagoSmart Define. 2015. "ad-lib thesaurus" https://smartdefine.org/ad-lib/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, ad-lib thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/ad-lib/thesaurus/synonyms>.
MLASmart Define. "ad-lib thesaurus" 13 April 2015. Web. 24 September 2026. <https://smartdefine.org/ad-lib/thesaurus/synonyms>