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Definitions

hyper

[hahy-per] / ˈhaɪ pər /












ADJECTIVE
overexcited
Synonyms
















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.

Patients who lack the ability to access this diversity-generating process—including those suffering from a condition known as hyper IgM—remain dangerously vulnerable to infection and often require antibody infusions for life.

From The Wall Street Journal • Apr. 20, 2026

"More than half experienced physical symptoms including difficulty sleeping, headaches or excessive tiredness, while nearly two thirds reported behavioural changes such as distrusting others or hyper vigilance," Halkon said.

From BBC • Apr. 12, 2026

In this room, I am at times unsettled, at once tracking the movements of the actors while attempting to remain hyper aware of any sudden touch or scent.

From Los Angeles Times • Mar. 26, 2026

When the Sun gets all hyper with magnetic activity, it throws out huge bursts of super-hot, super-fast gas called plasma.

From Space Scoop • Nov. 19, 2025

Given how hyper and energetic I’d always been as a little kid, no one was entirely surprised when it turned out I had ADHD.

From "Courage to Soar" by Simone Biles




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