0
not kosher(expression, mock, affected, impromptu)
0
on the spot(expression, adjective, idiom, free, casual)
0
planter(mock, affected, impromptu)
0
set up(verb, expression, make, fix, create)
0
snapper(adjective, free, casual, unrehearsed, improvised)
0
soft shell(expression, mock, affected, impromptu)
0
spontaneously
0
spurious(mock, affected, impromptu)
0
suppositious(mock, affected, impromptu)
0
supposititious(mock, affected, impromptu)
0
trumped-up(mock, affected, impromptu)
0
unarranged(unprepared, unplanned, unrehearsed)
0
unauthentic(mock, affected, impromptu)
0
ungenuine(mock, affected, impromptu)
0
without preparation(expression, adverb, offhand, impromptu, spontaneously)
0
without preparing(expression, spontaneously, extemporaneously)
0
without rehearsal(expression, spontaneously, extemporaneously)
0
without restraint(expression, spontaneously, extemporaneously)
-1
extemporization
-1
improvisation
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APASmart Define. (2013). improv thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/improv/thesaurus/synonyms
ChicagoSmart Define. 2013. "improv thesaurus" https://smartdefine.org/improv/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2013, improv thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/improv/thesaurus/synonyms>.
MLASmart Define. "improv thesaurus" 17 June 2013. Web. 23 September 2026. <https://smartdefine.org/improv/thesaurus/synonyms>