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erratic
This term describes a lack of stability or predictability, often carrying a negative connotation of unreliability or instability. It is frequently used to describe mechanical failures, volatile financial markets, or unstable human behavior, suggesting a jarring departure from an expected norm.
In a behavioral context, it implies a sense of chaos or lack of control, whereas in a physical or technical context, it suggests a malfunction or an irregular pulse. It differs from "random" in that erratic behavior often fluctuates around a baseline rather than being completely devoid of any pattern.
Meanings
Examples
His mood is erratic.
The signal is erratic.
The wind is erratic.
The baby had erratic sleep patterns.
Her heart beat was erratic today.
The old clock was very erratic.
The student showed erratic attendance this term.
The suspect exhibited erratic behavior during interrogation.
The dragon flew in an erratic pattern.
The company suffered from erratic leadership decisions.
Historical records show the king had erratic temperaments.
I apologize for my erratic responses lately.