Describes someone who acts without shame or modesty.
Su actitud desfachatada durante la reunión sorprendió a todos los presentes, quienes esperaban un comportamiento más formal.
His shameless attitude during the meeting surprised everyone present, who expected a more formal behavior.
Su actitud desfachatada y arrogante le ha costado muchos amigos a lo largo de los años.
His brazen and arrogant attitude has cost him many friends over the years.