behave erratically
verb phrase
Meaning
Act in a way that is unpredictable, inconsistent, or lacks a clear pattern.
Examples
- The stock market started to behave erratically after the sudden announcement.
- If you notice your computer beginning to behave erratically, you should back up your files immediately.
Synonyms: act strangely, act unpredictably, act inconsistently, act capriciously