形容词

1. 精明的;敏锐的;有眼光的;精于盘算的
A shrewd person is able to understand and judge a situation quickly and to use this understanding to their own advantage.

1. marked by practical hardheaded intelligence

e.g. a smart businessman
an astute tenant always reads the small print in a lease
he was too shrewd to go along with them on a road that could lead only to their overthrow

Synonym: astutesharp

2. used of persons

e.g. the most calculating and selfish men in the community

Synonym: calculatingcalculativeconnivingscheming