From The Collaborative International Dictionary of English v.0.48 :
Calculative \Cal"cu*la*tive\, a. Of or pertaining to calculation; involving calculation. [1913 Webster] Long habits of calculative dealings. --Burke. [1913 Webster]From WordNet (r) 3.0 (2006) :
calculative adj 1: used of persons; "the most calculating and selfish men in the community" [syn: calculating, calculative, conniving, scheming, shrewd]