338 entries under adjective topic. ×

1
having something on the ball(expression, idiom, sophisticated, knowledgeable)
1
heady(smooth, keen, sharp, smart)
1
highbrow(knowledgeable, intellectual, cultured, learned)
1
hip to(expression, cool, sensible, familiar)
1
in on(expression, cool, sensible, familiar)
1
in to(expression, familiar, wise, knowledgeable)
1
ingenious(smooth, keen, sharp, smart)
1
inside(sharp, smart, intelligent, prudent)
1
instructed(familiar, sophisticated, knowledgeable, skilled)
1
intellectual(sound, knowledgeable, cultured, learned)
1
introduced(familiar, knowledgeable, aware, savvy)
1
jaded(refined, practical, cultured, urbane)
1
jet-set(cool, refined, practical, mature)
1
judicious(smooth, keen, sharp, smart)
1
keen(smooth, sharp, smart, wise)
1
kept posted(expression, familiar, knowledgeable, witting)
1
know-how(alert, familiar, wise, knowledgeable)
1
know all the answers(expression, idiom, careful, aware)
1
know ins and outs(expression, idiom, careful, aware)
1
knowing the score(expression, idiom, sophisticated, knowledgeable)
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APASmart Define. (2015). in the know thesaurus. Retrieved September 28, 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 28, 2026).
HarvardSmart Define 2015, in the know thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/in_the_know/thesaurus/synonyms>.
MLASmart Define. "in the know thesaurus" 14 April 2015. Web. 28 September 2026. <https://smartdefine.org/in_the_know/thesaurus/synonyms>