perceptive, insightful
Tom es bastante perspicaz.
Tom is quite perceptive.
Eres muy perspicaz.
You are very perceptive.
La criada perspicaz ha salido por un instante.
The perceptive maid has stepped out for a moment.
— La doncella (2016)
Su majestad es perspicaz.
His Majesty is perceptive.
— Hero (2002)