burdensome
/ˈbəːdənʊm/Definitions
1. adjective
causing or involving a burden; unwieldy, or troublesome to carry or deal with
“The project’s paperwork was becoming increasingly burdensome for the small business.”
2. noun
a burden or weight that is considered to be troublesome or difficult to bear
“The financial burdensome of the divorce was too much for her to handle alone.”