What is the difference between 'inadmissibility' and 'deportability' under U.S. immigration law?

Inadmissibility refers to grounds that prevent someone from entering or adjusting status in the U.S.

Deportability applies to people already admitted who become removable due to violations.

A lawful permanent resident can be deportable but not inadmissible unless they travel and reenter.

A lawful permanent resident can be deportable but not inadmissible unless they travel and reenter.