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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.

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

“After some years of hyper growth, then we’ve seen deceleration of growth rates for the company,” Novo CFO Karsten Munk Knudsen told Barron’s.

From Barron's • Nov. 6, 2025

Side effects are rare, but some children get a little more hyper or have more repetitive behaviors.

From The Wall Street Journal • Sep. 24, 2025

Added to the front of a word, hyper means “over” or “more”; hypo means “under” or “less.”

From "Woe Is I" by Patricia T. O'Conner