If you describe something as ~, you mean it is worrying or hard to deal with. (WRITTEN)
...a ~ debt...
The load was too ~.
= onerous
ADJ
If you describe something as ~, you mean it is worrying or hard to deal with. (WRITTEN)
...a ~ debt...
The load was too ~.
= onerous
ADJ
Collins COBUILD. Толковый словарь английского языка для изучающих язык Коллинз COBUILD (международная база данных языков Бирмингемского университета) . 2012