ennui
US /ˌɑːnˈwiː/
UK /ˌɑːnˈwiː/

1.
noia, tedio, apatia
a feeling of listlessness and dissatisfaction arising from a lack of occupation or excitement; boredom.
:
•
The endless lectures filled him with ennui.
Le infinite lezioni lo riempivano di noia.
•
She suffered from a deep sense of ennui during her long illness.
Ha sofferto di un profondo senso di noia durante la sua lunga malattia.