impugnar

Sin embargo, Unite ha acusado a McDonalds y Burger King de tratar de negar a los trabajadores sus derechos en virtud tanto de los convenios colectivos como de la ley y se va a impugnar su actuación en los tribunales.
However, Unite has accused McDonald's and Burger King of trying to deny workers their rights under both the collective agreements and the law and will be challenging their actions in the courts.
Word of the Day
to cluck