14
aware(adjective, cool, sensible, alert, familiar)
9
knowledgeable(adjective, cool, sensible, alert, familiar)
7
enlightened(adjective, alert, familiar, wise, knowledgeable)
7
informed(adjective, cool, sensible, alert, familiar)
6
cognizant(adjective, sensible, alert, familiar, careful)
5
experienced(adjective, smooth, keen, sharp, smart)
5
shrewd(adjective, smooth, keen, sharp, smart)
4
familiar(adjective, cool, sensible, alert, sophisticated)
4
mindful(adjective, alert, familiar, wise, knowledgeable)
4
seasoned(adjective, familiar, sophisticated, wise, refined)
4
sensible(adjective, smooth, keen, sharp, smart)
4
well-informed(adjective, familiar, knowledgeable, competent, informed)
4
wise(adjective, smooth, keen, sharp, smart)
3
appreciative(adjective, alert, familiar, wise, knowledgeable)
3
au courant(expression, adjective, cool, sensible, alert)
3
au fait(expression, adjective, familiar, knowledgeable, competent)
3
hep
3
knowing(adjective, cool, smooth, keen, sharp)
3
on to(expression, adjective, cool, sensible, alert)
3
privy(adjective, smart, familiar, brilliant, wise)
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APASmart Define. (2015). in the know thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/in_the_know/thesaurus/synonyms
ChicagoSmart Define. 2015. "in the know thesaurus" https://smartdefine.org/in_the_know/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, in the know thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/in_the_know/thesaurus/synonyms>.
MLASmart Define. "in the know thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/in_the_know/thesaurus/synonyms>