onerous

US /ˈɑː.nɚ.əs/
UK /ˈɑː.nɚ.əs/
"onerous" picture
1.

oneroso, pesado, difícil

involving a great deal of effort, trouble, or difficulty

:
The new regulations impose onerous burdens on small businesses.
As novas regulamentações impõem encargos onerosos às pequenas empresas.
He found the task to be quite onerous.
Ele achou a tarefa bastante onerosa.