Definition of overaggressive
: excessively aggressive
a child displaying overaggressive behavior in school overaggressive drivers … unnecessary care such as antibiotics for the common cold or overaggressive treatment of diabetes, leading to sometimes fatal hypoglycemia.— Dan Morgan
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Merriam-Webster unabridged
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Time Traveler for overaggressive
The first known use of overaggressive was in 1859
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