Burdensome vs. onerous: what’s the difference?
The short answer
While burdensome typically emphasizes the emotional or physical weight or stress of a task, onerous often highlights the legal or formal obligations that make a task difficult.
What they have in common
Both burdensome and onerous describe something that involves a lot of effort and difficulty, often causing stress or inconvenience.
Examples
burdensome
- The long commute became burdensome after a few months.
- Taking care of the large estate was burdensome for the family.
- Her responsibilities at work were becoming increasingly burdensome.
onerous
- The contract had onerous terms that were difficult to fulfill.
- Managing the legal requirements was an onerous task.
- The government regulations were considered onerous by the small business.
Which one is more common?

Spotted a mistake in this article? Tell us