112 entries under spontaneous topic. ×

4
unreflecting(adjective, instinctive, intuitive)
3
congenial(adjective, simple, easy, plain, straightforward)
3
effortless(adjective, easy, articulate, confident)
3
extemporaneous(adjective, simple, casual, impulsive, willing)
2
colloquial(adjective, simple, ordinary, familiar, straightforward)
2
from the hip(expression, adjective, idiom, open, direct)
2
impromptu(adjective, simple, casual, impulsive, willing)
2
improvised(adjective, simple, casual, impulsive, willing)
2
loose(adjective, simple, easy, plain, relaxed)
2
unartful(adjective, simple, honest, plain, casual)
2
uncontrolled(adjective, simple, relaxed, ordinary, usual)
2
unconventional(adjective, simple, new, hot, straightforward)
2
unofficial(adjective, simple, easy, plain, straightforward)
2
unplanned(adjective, simple, casual, impulsive, willing)
2
up front(expression, adjective, open, direct, free)
2
voluntary(adjective, simple, casual, impulsive, willing)
1
ad-lib(adjective, simple, casual, impulsive, willing)
1
break loose(expression, adjective, simple, casual, impulsive)
1
democratic(adjective, kind, simple, gentle, plain)
1
down(adjective, simple, plain, modest, casual)
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APASmart Define. (2016). natural thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/natural/thesaurus/synonyms
ChicagoSmart Define. 2016. "natural thesaurus" https://smartdefine.org/natural/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2016, natural thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/natural/thesaurus/synonyms>.
MLASmart Define. "natural thesaurus" 15 February 2016. Web. 30 September 2026. <https://smartdefine.org/natural/thesaurus/synonyms>