MACHIAVELLIAN:
■ adjective
1. of Machiavelli
2. of, like, or characterized by the political principles and methods of expediency, craftiness, and duplicity set forth in Machiavelli's book, The Prince; crafty, deceitful, etc.
■ noun
a follower of crafty, deceitful principles and methods
Eg. People are exposed to Machiavellian logic even from novice politicians
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NEBULOUS:
■ adjective
1. of or like a nebula or nebulae
2. Rare cloudy; misty
3. unclear; vague; indefinite