54 entries under thoughtful topic. ×

25
learned(adjective, sound, knowledge, sharp, smart)
22
erudite(adjective, knowledge, smart, sensible, experience)
20
academic(adjective, obscure, rational, intelligent)
15
intellectual(adjective, smart, bright, knowledgeable)
13
lettered(adjective, knowledge, smart, familiar, polite)
13
studious(adjective, rational, intelligent, serious)
12
well-read(adjective, knowledge, experience, skill, familiar)
11
knowledgeable(adjective, sound, knowledge, sharp, smart)
9
brainy(adjective, knowledge, smart, bright, experience)
8
profound(adjective, obscure, smart, bright, complex)
7
informed(adjective, sound, knowledge, sharp, smart)
6
deep(adjective, obscure, smart, bright, rational)
5
recondite(adjective, obscure, complex, deep, rational)
4
knowing(adjective, sound, knowledge, sharp, smart)
3
cerebral(adjective, rational, intelligent, serious)
3
industrious(serious, learning, reflective)
3
philosophical(adjective, deep, knowledgeable, cultured)
3
rational(adjective, smart, bright, sensible, intelligent)
2
abstruse(obscure, complex, deep, modern)
2
diligent(serious, reflective)
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APASmart Define. (2015). scholarly thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/scholarly/thesaurus/synonyms
ChicagoSmart Define. 2015. "scholarly thesaurus" https://smartdefine.org/scholarly/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, scholarly thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/scholarly/thesaurus/synonyms>.
MLASmart Define. "scholarly thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/scholarly/thesaurus/synonyms>