37 entries under expression topic. ×

1
taken by surprise
1
thrown off(fake, unprepared, unplanned, unrehearsed)
1
toss off(adjective, free, casual, impulsive)
1
toss out(adjective, free, casual, impulsive)
1
tossed off(fake, unprepared, unplanned, unrehearsed)
1
up front(adjective, simple, natural, casual)
1
whipped up(fake, unprepared, unplanned, unrehearsed)
1
winging it(adjective, free, casual, thoughtless)
1
without restraint(adverb, informal, impulsive, extemporize)
0
ad libitem(idiom, nonpreparation)
0
by chance(chance, unplanned, unpremeditated)
0
not planned(unplanned, accidental, inadvertent)
0
off the hip(idiom, impromptu)
0
off the top of head(idiom, impromptu)
0
off your own bat(idiom, willing, spontaneous, unforced)
0
pressed for time(idiom, transientness)
0
without preparation
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APASmart Define. (2015). extemporaneous thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/extemporaneous/thesaurus/synonyms
ChicagoSmart Define. 2015. "extemporaneous thesaurus" https://smartdefine.org/extemporaneous/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, extemporaneous thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/extemporaneous/thesaurus/synonyms>.
MLASmart Define. "extemporaneous thesaurus" 13 April 2015. Web. 26 September 2026. <https://smartdefine.org/extemporaneous/thesaurus/synonyms>