conniving vs scheming

conniving and scheming both are adjectives.

Word	Noun	Adjective	Verb	Adverb
conniving	No	Yes	No	No
scheming	No	Yes	No	No

As adjectives, conniving and scheming are synonyms defined as:

Other synonyms of conniving include calculating, calculative, shrewd.

conniving (adjective)	scheming (adjective)
acting together in secret toward a fraudulent or illegal end	concealing crafty designs for advancing your own interest
acting with a specific goal	acting with a specific goal