perspicacity
C2CEFR level
90/100Rarity: very rare
FormalRegister
General noun
Keenness of insight and understanding; the ability to notice and judge accurately.
His perspicacity in reading people made him a formidable negotiator.
Business noun
Keenness of insight and shrewd discernment.
It took real perspicacity to spot that the star performer was quietly hollowing out the team beneath him.
Rarity runs from 0 (a word everyone knows) to 100 (almost never seen outside specialist or literary writing). Level is the word's real difficulty on the CEFR scale, from A1 to C2.
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