73 entries under thoughtful topic. ×

4
studious(adjective, reasonable, smart, rational, intelligent)
3
analytical(adjective, sound, reasonable, sensible, rational)
3
bookworm(noun, authority, serious, expert)
3
cognitive(adjective, sound, reasonable, sensible, rational)
3
philosophical(adjective, sound, deep, abstract)
3
shrewd(adjective, smart, bright, deep, intelligent)
3
well-read(serious, knowledgeable, cultured, learned)
2
cogitative(adjective, reasonable, keen, deep, rational)
2
contemplative(adjective, reasonable, keen, deep, rational)
2
discerning(adjective, sound, reasonable, smart, bright)
2
insightful(deep, reflective)
2
lettered(adjective, serious, experienced, cultured)
2
logical(adjective, good, sound, reasonable, sensible)
2
meditative(adjective, reasonable, keen, deep, rational)
2
penetrating(smart, bright, deep, brainy)
2
pensive(adjective, reasonable, keen, deep, rational)
2
serious(adjective, reasonable, keen, deep)
2
skilled(sound, smart, bright, deep, intelligent)
2
well-informed(smart, bright, serious, cultured)
1
absorbed(adjective, reasonable, keen, deep, rational)
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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>