solemn, formal
Bienvenue à l’Auberge du Bout du Monde, déclara Chiang d’un ton solennel.
“Welcome to the Inn at the End of the World,” Chiang said solemnly.
Le dimanche, un office solennel rassembla tout le village.
On Sunday, a solemn church service brought the whole village together.
— Le Ruban blanc (2009)