389 entries under simple topic. ×

5
literal(adjective, honest, exact, pure)
5
low(adjective, soft, obscure, flat)
5
mediocre(adjective, good, weak, poor)
5
minimalist(adjective, feature, surface, decoration)
5
neat(adjective, clear, strong, sharp)
5
open-and-shut(adjective, clear, free, friendly)
5
pellucid(adjective, clear, clean, thin)
5
primary(adjective, pure, straightforward, basic)
5
refined(adjective, clean, wholesome, unpolluted)
5
stale(adjective, dull, weak, flat)
5
tiresome(adjective, dull, flat, stupid)
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total(adjective, complete, flat, clean)
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true(adjective, good, clear, open)
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trusting(adjective, open, easy, honest)
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unalloyed(adjective, clean, honest, pure)
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unelaborate(adjective, clean, pure, ordinary)
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unfeigned(adjective, good, open, easy)
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unimaginative(adjective, dull, tough, flat)
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unstudied(adjective, open, reasonable, easy)
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vapid(adjective, dull, weak, flat)
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APASmart Define. (2016). plain thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/plain/thesaurus/synonyms
ChicagoSmart Define. 2016. "plain thesaurus" https://smartdefine.org/plain/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, plain thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/plain/thesaurus/synonyms>.
MLASmart Define. "plain thesaurus" 31 March 2016. Web. 22 September 2026. <https://smartdefine.org/plain/thesaurus/synonyms>