contravention
noun [ C or U ]
formal uk/ˌkɒntrəˈvenʃən/ usan action that is against a law or rule, or that is not what you promised or were expected to do:
(a) contravention of sth The use of unguarded candles is a contravention of the 1981 Hotels & Boarding House Act.
be in contravention of sth We are trying to understand in what way we may have been in contravention of the law.
Council may serve a contravention notice if the builder fails to submit plans before starting construction work.