0
improviso
0
impulsive
0
informal
0
informally
0
instantly
0
limproviste(noun, impulse)
0
off the hip(expression, idiom, offhand, impromptu, spontaneously)
0
off the top of head(expression, idiom, impromptu, spontaneously, improv)
0
off top of head(expression, idiom, impromptu, spontaneously, improv)
0
offhanded
0
quickly
0
readily
0
snappily
0
spur
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spur of the moment(expression, idiom, offhand, impromptu, spontaneously)
0
straightway
0
suddenly
0
summarily
0
unconsciously
0
unintentionally
11 years ago|1.7k views|share |citing 
APASmart Define. (2015). extemporaneously thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/extemporaneously/thesaurus/synonyms
ChicagoSmart Define. 2015. "extemporaneously thesaurus" https://smartdefine.org/extemporaneously/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, extemporaneously thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/extemporaneously/thesaurus/synonyms>.
MLASmart Define. "extemporaneously thesaurus" 14 April 2015. Web. 27 September 2026. <https://smartdefine.org/extemporaneously/thesaurus/synonyms>