26 entries under serious topic. ×

13
scholarly(adjective, rational, intelligent, wise)
12
learned(verb, adjective, obscure, rational)
5
highbrow(adjective, rational, intelligent, thoughtful)
4
cultured(adjective, wise, knowledgeable, intellectual)
3
brainy(adjective, rational, intelligent, thoughtful)
3
cultivated(adjective, wise, intellectual, cultured)
3
well-read(adjective, thoughtful, cultured, knowing)
2
diligent(thoughtful, reflective)
2
lettered(adjective, knowledge, thoughtful, knowledgeable)
2
thoughtful(rational, intelligent, knowledgeable, reflective)
1
assiduous(adjective, thoughtful, reflective)
1
cerebral(adjective, rational, intelligent, thoughtful)
1
reflective(adjective, thoughtful)
1
well-informed(adjective, thoughtful, knowledgeable, cultured)
0
attentive(thoughtful, reflective)
0
careful(thoughtful, reflective)
0
contemplative(thoughtful, reflective)
0
eager(thoughtful, reflective)
0
earnest(thoughtful, reflective)
0
grubbing(thoughtful, reflective)
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APASmart Define. (2015). bookish thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/bookish/thesaurus/synonyms
ChicagoSmart Define. 2015. "bookish thesaurus" https://smartdefine.org/bookish/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, bookish thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/bookish/thesaurus/synonyms>.
MLASmart Define. "bookish thesaurus" 14 April 2015. Web. 27 September 2026. <https://smartdefine.org/bookish/thesaurus/synonyms>