32 entries under basic topic. ×

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prefatory(simple, straightforward, fundamental, uncomplicated)
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preliminary(simple, straightforward, fundamental, uncomplicated)
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primary(simple, straightforward, uncomplicated)
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primitive(simple, straightforward, fundamental, uncomplicated)
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primo(simple, straightforward, fundamental, undemanding)
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rudimentary(simple, straightforward, fundamental, uncomplicated)
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simplest(simple, straightforward, fundamental, uncomplicated)
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simplified(simple, straightforward, fundamental, uncomplicated)
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straightforward(simple, fundamental, uncomplicated)
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substratal(simple, straightforward, fundamental, undemanding)
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uncomplex(simple, straightforward, fundamental, undemanding)
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underlying(simple, straightforward, uncomplicated)
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APASmart Define. (2013). simplex thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/simplex/thesaurus/synonyms
ChicagoSmart Define. 2013. "simplex thesaurus" https://smartdefine.org/simplex/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2013, simplex thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/simplex/thesaurus/synonyms>.
MLASmart Define. "simplex thesaurus" 28 June 2013. Web. 21 September 2026. <https://smartdefine.org/simplex/thesaurus/synonyms>