overactive
adjective
over·ac·tive
ˌō-vər-ˈak-tiv 
: excessively or abnormally active
overactive glands
an overactive imagination
Synonyms
Examples of overactive in a Sentence
She has an overactive bladder.
His crazy ideas are products of an overactive imagination.
Recent Examples on the Web
For example, diaphragmatic breathing can help calm the overactive nervous system and regulate breathing.
—
Sarah Bence, Verywell Health, 24 Jan. 2025
Inflammatory Skin Conditions Inflammatory skin conditions like eczema (atopic dermatitis) and psoriasis develop due to an overactive immune system.
—Lindsay Curtis, Health, 20 Jan. 2025
Yet another study randomized 24 adults with overactive bladder, which produces a sudden, uncontrollable urge to urinate and examined the effect of increasing or decreasing fluid intake on symptoms.
—New Atlas, 1 Jan. 2025
It’s estimated that 1% of Americans over the age of 12 have hyperthyroidism (also known as an overactive thyroid), a condition that occurs when your body produces more thyroid hormone than normal, according to the National Institute of Diabetes and Digestive and Kidney Diseases.
—Caroline C. Boyle, USA TODAY, 10 Jan. 2025
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Sarah Bence, Verywell Health, 24 Jan. 2025
Inflammatory Skin Conditions Inflammatory skin conditions like eczema (atopic dermatitis) and psoriasis develop due to an overactive immune system.
—Lindsay Curtis, Health, 20 Jan. 2025
Yet another study randomized 24 adults with overactive bladder, which produces a sudden, uncontrollable urge to urinate and examined the effect of increasing or decreasing fluid intake on symptoms.
—New Atlas, 1 Jan. 2025
It’s estimated that 1% of Americans over the age of 12 have hyperthyroidism (also known as an overactive thyroid), a condition that occurs when your body produces more thyroid hormone than normal, according to the National Institute of Diabetes and Digestive and Kidney Diseases.
—Caroline C. Boyle, USA TODAY, 10 Jan. 2025
See all Example Sentences for overactive
Dictionary Entries Near overactive
Cite this Entry
“Overactive.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/overactive. Accessed 29 Jan. 2025.
Copy CitationKids Definition
overactive
adjective
over·ac·tive
ˌō-və-ˈrak-tiv
: very active and especially abnormally so
an overactive thyroid
Medical Definition
overactive
adjective
over·ac·tive
ˌō-və-ˈrak-tiv
: excessively or abnormally active
an overactive mind
overactive glands
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