29 entries under unprepared topic. ×

2
ad lib(expression, adjective, free, informal, casual)
2
immediate(adjective, present, free, fake, informal)
2
spur-of-the-moment(adjective, free, fake, informal, casual)
1
ad-lib(adjective, free, fake, informal, casual)
1
automatic(free, informal, casual, impulsive)
1
autoschediastic(free, casual, impulsive, spontaneous)
1
extemporaneous(adjective, free, informal, casual, impulsive)
1
extemporary(free, casual, impulsive, spontaneous)
1
fake(free, casual, impulsive, spontaneous)
1
free(informal, casual, impulsive, spontaneous)
1
off-the-cuff(adjective, informal, spontaneous, impromptu)
1
snap(free, informal, casual, impulsive)
1
toss off(expression, free, casual, impulsive, spontaneous)
1
toss out(expression, free, casual, impulsive, spontaneous)
1
unstudied(free, informal, casual, impulsive)
0
dashed off(expression, unplanned, unrehearsed)
0
extemporized(adjective, informal, spontaneous, unplanned)
0
faked(unplanned, unrehearsed)
0
impulsive(spontaneous, unplanned)
0
out of the blue(expression, idiom)
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APASmart Define. (2016). ad hoc thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/ad_hoc/thesaurus/synonyms
ChicagoSmart Define. 2016. "ad hoc thesaurus" https://smartdefine.org/ad_hoc/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2016, ad hoc thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/ad_hoc/thesaurus/synonyms>.
MLASmart Define. "ad hoc thesaurus" 26 February 2016. Web. 29 September 2026. <https://smartdefine.org/ad_hoc/thesaurus/synonyms>