calculating
v. B2 Upper Intermediate US //ˈkæɫkjəˌɫeɪtɪŋ// UK //kˈælkjʊlˌeɪtɪŋ// cal·cu·lat·ing
v. planning things very carefully to get what you want, often without caring about other people's feelings.
v. characterised by shrewd, strategic planning, often with a cold or selfish disregard for others. Frequently carries a negative connotation of being manipulative or overly pragmatic.
He is a very calculating person who always has a secret plan.
The manager made a calculating decision to fire the staff just before their bonuses were due.
Her rise to the top of the firm was marked by a series of calculating moves that alienated her colleagues but secured her position with the board.
Usage
Typically used to describe people or their specific actions and decisions.