39 entries under simple topic. ×

2
unbidden(adjective, natural, casual, impulsive)
2
uncontrived(adjective, natural, casual, impulsive)
2
unplanned(adjective, free, fake, natural)
2
voluntary(adjective, natural, casual, impulsive)
1
break loose(expression, adjective, natural, casual)
1
down(adjective, natural, casual, impulsive)
1
free spirited(expression, adjective, natural, casual)
1
from the hip(expression, adjective, idiom, natural)
1
irresistible(adjective, natural, casual, impulsive)
1
off-the-cuff(adjective, natural, casual, impulsive)
1
off top of head(expression, adjective, idiom, natural)
1
unartful(adjective, natural, casual, impulsive)
1
uncompelled(adjective, natural, casual, impulsive)
1
unconstrained(adjective, natural, casual, impulsive)
1
uncontrolled(adjective, natural, casual, impulsive)
1
unpremediated(adjective, natural, casual, impulsive)
1
unsophisticated(adjective, natural, casual, impulsive)
1
up front(expression, adjective, natural, casual)
1
willing(adjective, natural, casual, impulsive)
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APASmart Define. (2015). automatic thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/automatic/thesaurus/synonyms
ChicagoSmart Define. 2015. "automatic thesaurus" https://smartdefine.org/automatic/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, automatic thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/automatic/thesaurus/synonyms>.
MLASmart Define. "automatic thesaurus" 8 October 2015. Web. 22 September 2026. <https://smartdefine.org/automatic/thesaurus/synonyms>