Synonyms|577Antonyms|125|Broader|8Narrower|14Related|988

64 entries under thoughtful topic. ×

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discreet(sober, cautious, prudent, wary)
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erudite(serious, reflective)
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going to great lengths(expression, idiom, sober, prudent)
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grubbing(serious, reflective)
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guarded(sober, cautious, prudent, wary)
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intellectual(serious, reflective)
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judicious(sober, cautious, prudent, wary)
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learned(serious, reflective)
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leery(sober, cautious, prudent, wary)
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lettered(serious, reflective)
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meditative(serious, reflective)
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playing safe(expression, careful, sober, prudent)
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prim(sober, cautious, prudent, wary)
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protective(sober, cautious, prudent, wary)
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prudent(sober, cautious, wary, watchful)
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reflective
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religious(sober, cautious, prudent, wary)
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scholarly(serious, reflective)
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selfdisciplined(sober, cautious, prudent, wary)
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solicitous(sober, considerate, cautious, prudent)
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APASmart Define. (2015). assiduous thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/assiduous/thesaurus/synonyms
ChicagoSmart Define. 2015. "assiduous thesaurus" https://smartdefine.org/assiduous/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, assiduous thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/assiduous/thesaurus/synonyms>.
MLASmart Define. "assiduous thesaurus" 14 April 2015. Web. 28 September 2026. <https://smartdefine.org/assiduous/thesaurus/synonyms>