Meanings of cast opprobrium in English

In his Emissions column recently, Kilian Doyle cast opprobrium on Dublin's motorcycle couriers.

Wherever she has gone forth she has acquitted herself creditably, and successfully lived down all attempts to ridicule and cast opprobrium upon her adventure.

As if to cast opprobrium at his own father, Bobby Kennedy took a personal interest in the persecution of Papa Joe's election-fraud accomplices in Chicago.