rootproblem

noun
UK /ruːt ˈprɒbləm/
US /ruːt ˈprɑːbləm/

The main reason something goes wrong.

The rootproblem was that nobody listened.


OTHER MEANINGS

2. The deepest part of a problem that must be fixed first.

We fixed the rootproblem instead of the small mistakes.

3. A hidden reason that makes other problems happen.

The rootproblem was a broken pipe under the floor.

4. The first and biggest thing that needs to be solved.

Finding the rootproblem saved us a lot of time.