1
fake(free, casual, impulsive, spontaneous, unprepared)
1
familiar(adjective, simple, easy, plain, modest)
1
flourish
1
folksy(adjective, simple, easy, plain, relaxed)
1
frank(adjective, simple, easy, plain, straightforward)
1
free-and-easy(adjective, simple, easy, plain, straightforward)
1
free spirited(expression, adjective, simple, natural, casual)
1
from the hip(expression, adjective, idiom, simple, natural)
1
homey(adjective, simple, easy, plain, relaxed)
1
immediate(free, casual, impulsive, spontaneous, unprepared)
1
impetuous(adjective, simple, natural, casual, impulsive)
1
improvisation
1
improvisational
1
improvisatorial
1
impulsive(adjective, simple, natural, chance, casual)
1
inconspicuous(adjective, simple, easy, plain, straightforward)
1
inevitable(adjective, simple, natural, casual, impulsive)
1
instant
1
instinctive(adjective, simple, natural, casual, impulsive)
1
interpolation
11 years ago|5.5k views|share |citing 
APASmart Define. (2015). extempore thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/extempore/thesaurus/synonyms
ChicagoSmart Define. 2015. "extempore thesaurus" https://smartdefine.org/extempore/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, extempore thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/extempore/thesaurus/synonyms>.
MLASmart Define. "extempore thesaurus" 10 April 2015. Web. 21 September 2026. <https://smartdefine.org/extempore/thesaurus/synonyms>