also: こんぼん
We need to get to the root of the problem.
Emphasizes the underlying principle or essential nature that supports something, such as a theory, system, or belief.
この考えは民主主義の根本に反する。
This idea goes against the foundation of democracy.
Finding the root of the problem is the first step to solving it.
We decided to rethink the company's management policy from the ground up.
When a discussion gets confused, you should go back to the fundamentals.
根本 refers to the root or origin of something and is used in everyday, concrete contexts like 根本的な問題, whereas 根底 is more formal and stresses the deepest, often hidden basis.
根本 stresses the deepest root cause of a matter, while 基 focuses on the basis on which something is built or established.
fundamental schism; great schism
fundamental principles; basics; ground rules
fundamentalist