wearing

wearing
wear‧ing /ˈweərɪŋ $ ˈwer-/ adjectivemaking you feel tired or annoyed:
    Taking care of children can be wearing.
     

THESAURUS

   ▪ tiring making you feel that you want to sleep or rest: The journey was really tiring. | I’ve had such a tiring day. | It was tiring work.
   ▪ exhausting extremely tiring: I had to drive nine hours without a break – it was exhausting. | an exhausting week of singing, acting, and dancing
   ▪ hard very tiring and difficult – used about days, journeys etc: a hard day at work | The last part of the journey was very hard.
   ▪ wearing /ˈweərɪŋ $ ˈwer-/ tiring because you have to use a lot of your mental energy, and often become bored – used about people, situations etc: I find her constant questions rather wearing. | Kids of that age can be very wearing. | His films always tend to have the same plots, which does get rather wearing after a while.
   ▪ gruelling British English, grueling American English (also punishing) very tiring physically or mentally – used when you have to keep doing something for a long time: a gruelling journey across the desert | a gruelling race | a punishing schedule | a punishing exercise regime
   ▪ backbreaking backbreaking work is extremely tiring and needs a lot of physical effort: Clearing the land was slow backbreaking work. | Laborers were paid $2 a day for backbreaking farm work.
   ▪ something is a killer informal used when saying that something is extremely tiring: Today was a real killer.
   ▪ fatiguing formal making you feel very tired: Factory work was repetitive and fatiguing.