shrewd vs calculative

shrewd and calculative both are adjectives.

Word	Noun	Adjective	Verb	Adverb
shrewd	No	Yes	No	No
calculative	No	Yes	No	No

As adjectives, shrewd and calculative are synonyms defined as:

Other synonyms of shrewd include calculating, conniving, scheming.

shrewd (adjective)	calculative (adjective)
acting with a specific goal	acting with a specific goal
marked by practical hardheaded intelligence