wearisome
US /ˈwɪr.i.səm/
UK /ˈwɪr.i.səm/

1.
fastidieux, lassant, ennuyeux
causing one to feel tired or bored
:
•
The long, repetitive task was quite wearisome.
La tâche longue et répétitive était assez fastidieuse.
•
His constant complaining became very wearisome.
Ses plaintes constantes sont devenues très lassantes.