He was displeased with his neighbor.
- Il était mécontent de son voisin.
We think a disgruntled employee was the one who planted the bomb.
- Nous pensons que c'était un employé mécontent qui a placé la bombe.
Dissatisfied customers are voting with their feet.
- Les clients mécontents s'en vont.
Are you satisfied or dissatisfied?
- Es-tu satisfait ou mécontent ?