1
off the top of head(expression, idiom, free, informal, casual)
1
off top of head(expression, adjective, idiom, adverb, informal)
1
open(adjective, simple, plain, relaxed, straightforward)
1
ordinary(adjective, simple, plain, relaxed, straightforward)
1
originate(verb, make, fix, create, prepare)
1
play by ear(verb, expression, idiom, make, fix)
1
played by ear(expression, adjective, fake, unprepared, unplanned)
1
prepare(verb, make, fix, create, ready)
1
pretend(verb, make, fix, create, prepare)
1
put together(verb, expression, make, fix, create)
1
ready(verb, make, fix, create, prepare)
1
shot from the hip(expression, adjective, idiom, fake, impromptu)
1
simple(adjective, easy, plain, modest, straightforward)
1
snap(adjective, free, informal, casual, impulsive)
1
sporty(adjective, simple, plain, relaxed, straightforward)
1
spur of the moment(expression, adjective, idiom, adverb, mock)
1
storify(verb, make, fix, create, prepare)
1
straightforward(adjective, simple, easy, plain, relaxed)
1
taking for ride(expression, idiom, free, informal, casual)
1
thought out loud(expression, idiom, free, informal, casual)
13 years ago|1.3k views|share |citing 
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>