Synonyms: calculating, calculative, scheming, shrewd, conniving
Definition: used of persons
Usage: the most calculating and selfish men in the community
Synonyms: collusive, conniving
Definition: acting together in secret toward a fraudulent or illegal end
Similar words: covert
Definition: secret or hidden; not openly practiced or engaged in or shown or avowed
Usage: covert actions by the CIA; covert funding for the rebels