Synonyms: sharp, shrewd, astute
Definition: marked by practical hardheaded intelligence
Usage: 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
Similar words: smart
Definition: showing mental alertness and calculation and resourcefulness
Synonyms: calculating, calculative, scheming, shrewd, conniving
Definition: used of persons
Usage: the most calculating and selfish men in the community