Onerous

имя прилагательное обременительный; затруднительный, тягостный Например: onerous task — трудное задание onerous duties — тягостные обязанности Синоним(ы): heavy

Большой англо-русский словарь

Onerous

adjective Etymology: Middle English, from Middle French honereus, from Latin onerosus, from oner-, onus burden; akin to Sanskrit anas cart 1. involving, imposing, or constituting a burden ; troublesome
Example: an onerous task 2. having legal obligations that outweigh the advantages
Example: an onerous contractonerously adverbonerousness noun Synonyms: onerous, burdensome, oppressive, exacting mean imposing hardship. onerous stresses being laborious and heavy especially because distasteful
Example: the onerous task of cleaning up the mess. burdensome suggests causing mental as well as physical strain
Example: burdensome responsibilities. oppressive implies extreme harshness or severity in what is imposed
Example: the oppressive tyranny of a police state. exacting implies rigor or sternness rather than tyranny or injustice in the demands made or in the one demanding
Example: an exacting employer.

Энциклопедический словарь Мерриама-Вебстера