Erratic
Definition 1 of 4
Pro Tip 1/3
Human Behavior
Used to describe unpredictable or unusual human actions. He had an erratic way of talking that made him hard to understand.
Pro Tip 2/3
Negative Connotation
Often hints at something being wrong or undesirable. The team's performance was erratic and led to their loss.
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Caution in Use
Can be offensive if used to describe a person directly. Her moods have been erratic lately—I hope she's okay.