wearying
They don't come down to London much because it's too tiring with the kids.他们不经常去伦敦，因为带着孩子太累人。
She's a lovely woman, even if she can be a bit tiring at times.
Looking after small children can be very tiring.
Visiting museums is surprisingly tiring.

SMART Vocabulary: related words and phrases

Complicated and difficult to do
advanced
ambitious
ambitiously
another
arduous
formidable
formidably
get blood out of/from a stoneidiom
grail
gruelling
onerous
onerously
overdemanding
painstaking
picnic
trickily
tricky
tuff
ultra-sensitive
unintuitive

tiring | American Dictionary

tiring
adjective[ not gradable ]
us/ˈtɑɪər·ɪŋ/
causing you to feel you have no energy:
Dad had a tiring day at work.