arduous

US /ˈɑːr.dʒu.əs/
UK /ˈɑːr.dʒu.əs/
"arduous" picture
1.

sukar, berat, melelahkan

involving or requiring strenuous effort; difficult and tiring

:
The climb up the mountain was long and arduous.
Pendakian gunung itu panjang dan sukar.
Learning a new language can be an arduous process.
Mempelajari bahasa baru boleh menjadi proses yang sukar.