135 entries under knowledgeable topic. ×

34
intelligent(adjective, smart, bright, sharp, informal)
31
clever(adjective, cool, smooth, keen, sharp)
20
smart(adjective, understanding, cool, smooth, keen)
18
brilliant(adjective, cool, excellent, sharp, ability)
16
bright(adjective, cool, sharp, smart, significant)
16
intellectual(adjective, reasonable, ability, smart, bright)
15
sharp(adjective, understanding, cool, smooth, keen)
13
knowing(verb, adjective, understanding, smooth, knowledge)
13
shrewd(adjective, good, understanding, smooth, keen)
12
quick-witted(adjective, cool, keen, sharp, smart)
12
astute(adjective, understanding, cool, smooth, keen)
11
well-rounded(smart, familiar, intelligent, brilliant)
9
rational(adjective, understanding, reasonable, keen, sharp)
9
sagacious(adjective, understanding, cool, smooth, keen)
9
scholarly(adjective, knowledge, smart, bright, experience)
8
wise(adjective, understanding, cool, smooth, reasonable)
8
keen(adjective, understanding, smooth, reasonable, sharp)
8
quick(adjective, understanding, cool, smooth, keen)
7
apt(adjective, good, smooth, sharp, smart)
7
cerebral(adjective, reasonable, rational, intelligent, thoughtful)
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APASmart Define. (2016). brainy thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/brainy/thesaurus/synonyms
ChicagoSmart Define. 2016. "brainy thesaurus" https://smartdefine.org/brainy/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2016, brainy thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/brainy/thesaurus/synonyms>.
MLASmart Define. "brainy thesaurus" 24 March 2016. Web. 21 September 2026. <https://smartdefine.org/brainy/thesaurus/synonyms>