66 entries under expression topic. ×

10
ad lib(adjective, idiom, adverb, free)
8
off the cuff(adjective, idiom, adverb, free)
3
on the spot(idiom, occasion, instantaneity, earliness)
2
out of hand(idiom, earliness)
1
ad hoc(free, casual, unplanned, unrehearsed)
1
ad libitum(idiom, informal, unplanned, extemporize)
1
at once(idiom, instantaneity, earliness)
1
at short notice(idiom, earliness)
1
break loose(adjective, simple, natural, casual)
1
by ear(free, casual, impulsive, unrehearsed)
1
down home(adjective, simple, plain, straightforward)
1
free spirited(adjective, simple, natural, casual)
1
from the hip(adjective, idiom, simple, natural)
1
laid back(adjective, simple, straightforward, casual)
1
off hand
1
off the top of head(adverb, free, impromptu, unrehearsed)
1
off top of head(adjective, idiom, adverb, simple)
1
on impulse(free, casual, impulsive, unrehearsed)
1
per saltum(idiom, instantaneity)
1
toss off(free, casual, impulsive, spontaneous)
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APASmart Define. (2015). extempore thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/extempore/thesaurus/synonyms
ChicagoSmart Define. 2015. "extempore thesaurus" https://smartdefine.org/extempore/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, extempore thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/extempore/thesaurus/synonyms>.
MLASmart Define. "extempore thesaurus" 10 April 2015. Web. 20 September 2026. <https://smartdefine.org/extempore/thesaurus/synonyms>