Definition of overactive
: excessively or abnormally active overactive glands an overactive imagination
overactivityplay \ˌō-vər-ak-ˈti-və-tē\ noun
Examples of overactive in a Sentence
She has an overactive bladder.
His crazy ideas are products of an overactive imagination.
Recent Examples of overactive from the Web
Botox and Dysport are used to relax the wrinkles of overactive muscles.
The grip essentially takes golfers' right hand out of the stroke entirely, which is useful for players with an overactive right hand.
PTSD is caused by an overactive fear memory and includes a broad range of psychological symptoms that can develop after someone goes through a traumatic event.
The second hallmark of a psychopathic brain is an overactive reward system especially primed for drugs, sex, or anything else that delivers a ping of excitement.
Tamping down his overactive immune system brought him back.
Tinnitus is believed to be similar to the phantom-limb pain suffered by some amputees: as fewer impulses reach the cochlear nerve, the brain’s auditory circuitry compensates by becoming overactive, creating an illusion of sound.
Zika’s suspected relationship to Guillain-Barré syndrome, the overactive immune response that causes paralysis, remains equally unproved, according to the C.D.C.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'overactive'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
First Known Use of overactive
OVERACTIVE Defined for English Language Learners
Definition of overactive for English Language Learners
: too active especially in a way that produces a bad result
Seen and Heard
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