6
distinguished(adjective, famous, outstanding)
6
fluorescent(adjective, rich, glowing, sunny, radiant)
6
happy-go-lucky(adjective, play, pleasure, glad, merry)
6
high-spirited(adjective, pleasure, happy, energetic, enthusiastic)
6
intellectual(adjective, smart, rational, intelligent, thoughtful)
6
knowledgeable(adjective, good, cool, sharp, smart)
6
mellow(adjective, strong, pleasure, intense, glad)
6
on the ball(expression, adjective, idiom, sharp, lively)
6
rational(adjective, smart, intelligent, thoughtful, brainy)
6
ready(adjective, open, sharp, friendly, smart)
6
roseate(adjective, good, pleasant, happy, lively)
6
sensible(adjective, good, cool, keen, sharp)
6
smiling(adjective, calm, clear, happy, merry)
6
talented(adjective, good, keen, sharp, smart)
6
twinkling(adjective, appearance, light, brilliant, polished)
6
up(adjective, pleasure, glad, merry, funny)
6
wide-awake(adjective, sharp, lively, alert, intelligent)
5
active(adjective, good, clear, moving, sharp)
5
advanced(adjective, intelligent)
5
agile(adjective, sharp, smart, energetic, lively)
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APASmart Define. (2016). bright thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/bright/thesaurus/synonyms
ChicagoSmart Define. 2016. "bright thesaurus" https://smartdefine.org/bright/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, bright thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/bright/thesaurus/synonyms>.
MLASmart Define. "bright thesaurus" 31 March 2016. Web. 23 September 2026. <https://smartdefine.org/bright/thesaurus/synonyms>