50 entries under plain topic. ×
| relaxed(adjective, calm, quiet, light, smooth) | |
| aboveboard(simple, fresh, innocent, sincere) | |
| callow(simple, fresh, innocent, sincere) | |
| colloquial(adjective, simple, easy, straightforward) | |
| confiding(simple, fresh, innocent, sincere) | |
| congenial(adjective, simple, easy, friendly) | |
| countrified(simple, fresh, innocent, sincere) | |
| democratic(adjective, simple, easy, straightforward) | |
| down home(expression, adjective, simple, straightforward) | |
| easygoing(adjective, tighten) | |
| free-and-easy(adjective, simple, easy, straightforward) | |
| inconspicuous(adjective, simple, easy, straightforward) | |
| innocent(simple, easy, pure, sincere) | |
| lamb(simple, fresh, innocent, sincere) | |
| like a babe in the woods(expression, simple, fresh, innocent) | |
| mixed(adjective, simple, easy, straightforward) | |
| motley(adjective, simple, easy, straightforward) | |
| patsy(simple, fresh, innocent, sincere) | |
| simple-minded(simple, fresh, innocent, sincere) | |
| sincere(simple, honest, natural, straightforward) |
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| APA | Smart Define. (2015). spontaneous thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/spontaneous/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "spontaneous thesaurus" https://smartdefine.org/spontaneous/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2015, spontaneous thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/spontaneous/thesaurus/synonyms>. |
| MLA | Smart Define. "spontaneous thesaurus" 3 August 2015. Web. 25 September 2026. <https://smartdefine.org/spontaneous/thesaurus/synonyms> |