What is the meaning of "erratic"?

The term "erratic" refers to something that is not even or regular in pattern or movement. It describes behavior or occurrences that are unpredictable, inconsistent, or irregular. For instance, if a person's driving is erratic, it means their driving patterns are unpredictable and might vary widely from time to time, rather than following a consistent or safe pattern. This reflects the essence of the word "erratic," which implies a lack of normalcy or reliability in the behavior being described.

Other choices describe qualities that are consistent, predictable, or uniform, which stand in direct contrast to the meaning of "erratic." Therefore, the correct option accurately captures the idea of inconsistency that defines the term.