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Synonyms

excitability

American  
[ik-sahy-tuh-bil-i-tee] / ɪkˌsaɪ təˈbɪl ɪ ti /

noun

  1. the quality of being excitable.

  2. Physiology. irritability.


Other Word Forms

Etymology

Origin of excitability

First recorded in 1780–90; excitable + -ity

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Researchers looked at problem behaviour such as a fear of traffic or loud noises, separation-related issues or excitability.

From BBC Mar. 18, 2026

His team used a genetically modified mouse model that overexpresses the Grik4 gene, which increases the production of GluK4-type glutamate receptors and heightens neuronal excitability.

From Science Daily Nov. 4, 2025

That is a version of neurodivergence over excitability, high-achieving, profound subtle awareness and attunement.

From Los Angeles Times Oct. 15, 2025

"The ketogenic diet has been proven to be effective for treatment-resistant epileptic seizures by reducing the excitability of neurons in the brain," Sethi said.

From Science Daily Apr. 1, 2024

“My assessment,” the doctor writes, “is that he will be able to recover in a short time, while retaining the extreme excitability that must form the essence of his character.”

From "Vincent and Theo: The Van Gogh Brothers" by Deborah Heiligman

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