Dictionary.com
Thesaurus.com
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

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

From Los Angeles Times ● Oct. 15, 2025

"While it's often overlooked, aperiodic activity is important because it reflects brain cortical excitability," said study senior author Christopher T. Whitlow, M.D.,

From Science Daily ● Nov. 27, 2024

There is increasing evidence that psychiatric diseases such as schizophrenia and bipolar disorder stem from metabolic deficits in the brain, which affect the excitability of neurons, 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

Vocabulary.com logo
by dictionary.com

Just like flashcards, but way more fun

Don't take our word for it. Leave the boring studying behind and join VocabTrainer today. You'll learn even faster and never look back.

Take me to Vocabulary.com