Onerous

The word “onerous” is an adjective that describes something that is burdensome, difficult, or demanding. It refers to tasks, obligations, or responsibilities that are oppressive or excessively challenging.

Interesting fact: The word “onerous” comes from the Latin word “onus,” which means “burden.” It has been in use since the 17th century and is commonly used in legal and business contexts to describe obligations or contracts that impose significant burdens or hardships.