désinvolte
Meanings
Adjective
1. overly casual or familiar; cavalier
2. nonchalant, flippant
Examples2
Le ton désinvolte de l'article sape sa crédibilité.
The glib tone of the article undermines its credibility.
Il peut paraître désinvolte mais il sait de quoi il parle.
He may seem glib, but he knows what he's talking about.