73 entries under thoughtful topic. ×

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grubbing(serious, reflective)
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hard-working(serious, reflective)
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heavy(deep, rational, supernatural, spiritual)
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hermetic(deep, reflective)
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industrious(serious, reflective)
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mysterious(deep, rational, supernatural, spiritual)
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orphic(deep, reflective)
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ruminating(rational, intelligent)
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secret(deep, reflective)
0
sedulous(serious, reflective)
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subtle(deep, reflective)
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thorough(deep, reflective)
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weighty(deep, reflective)
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APASmart Define. (2016). intellectual thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/intellectual/thesaurus/synonyms
ChicagoSmart Define. 2016. "intellectual thesaurus" https://smartdefine.org/intellectual/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2016, intellectual thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/intellectual/thesaurus/synonyms>.
MLASmart Define. "intellectual thesaurus" 22 February 2016. Web. 28 September 2026. <https://smartdefine.org/intellectual/thesaurus/synonyms>