contravene | English to English Dictionary

go against, as of rules and laws(verb.social)

Synonym:
conflict, infringe, run afoul

source: wordnet30
deny the truth of(verb.communication)

Synonym:
contradict, negate

source: wordnet30
To meet in the way of opposition; to come into conflict with; to oppose; to contradict; to obstruct the operation of; to defeat.(verb)

source: webster1913

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