* Formal: "The company's actions contravened the terms of the contract, leading to legal action."
* Direct: "Your decision to leave early contravenes company policy."
* Figurative: "The artist's bold choices contravened traditional artistic conventions, creating a unique and powerful piece."
Contravene means to go against or violate a rule, law, agreement, or principle. It's a strong word that implies a deliberate and intentional action.