É o termo que geralmente uso nesse contexto.

Portuguese term (edited): doloso; condutas / dolosas

Difficult to guess the context: the translation can go various ways, depending on whether civil: wilful or the agency is one suffused with criminal intent > 'mens rea': wanton; fraudulent.

Reckless in ENG criminal law surely squares with the quote: quando o agente quis o resultado ou assumiu o risco de produzi-lo