His peccadillo was seen as a minor offense by most people.
She forgave him for his small mistake, considering it just a peccadillo.
Her slight indiscretion was dismissed as a mere peccadillo in the grand scheme of things.
The argument started over a trivial fault, almost like a peccadillo blown out of proportion.
It was an innocent transgression, more of a peccadillo than a serious wrongdoing.