389 entries under simple topic. ×

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actual(adjective, open, right, honest)
4
classic(adjective, clean, pure, modest)
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dead(adjective, dull, soft, obscure)
4
down(honest, modest, humble, unaffected)
4
elemental(adjective, pure, straightforward, basic)
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fair(adjective, good, open, reasonable)
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household(adjective, dull, usual, humble)
4
humdrum(adjective, dull, weak, flat)
4
indifferent(adjective, calm, good, dull)
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limpid(adjective, clear, clean, thin)
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mean(adjective, weak, soft, poor)
4
moderate(adjective, calm, light, soft)
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monotonous(adjective, dull, quiet, weak)
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muted(adjective, calm, quiet, soft)
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normal(adjective, pure, common, ordinary)
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open and shut(expression, adjective, idiom, clear)
4
readable(adjective, clear, sharp, distinct)
4
stock(adjective, good, flat, common)
4
subdued(adjective, calm, dull, quiet)
4
terse
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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>