unconsciousness
Britishnoun
Explanation
Unconsciousness is a state of being unaware of what's going on around you, either because you're not awake or because you're simply oblivious. If you fall asleep during a movie, and your unconsciousness means you'll miss the ending. Even if everyone in your family is mad at each other, your little cousin's unconsciousness of the argument might make it easier to have a peaceful Thanksgiving. And after the meal, the great quantities of food eaten may result in the unconsciousness of half the guests, who doze in the living room, snoring softly. In both kinds of unconsciousness, someone isn't conscious, or aware, of their surroundings.
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.
"Our findings show that the brain is far more active and capable during unconsciousness than previously thought," said Dr. Sameer Sheth, professor and Cullen Foundation Endowed chair of neurosurgery and a McNair Scholar at Baylor.
From Science Daily ● Jun. 29, 2026
It has an element of unconsciousness, like in any dream.
From Los Angeles Times ● Apr. 3, 2024
The new technology is intended to help prevent people with type 1 diabetes experiencing life-threatening low or high blood glucose levels, which can lead to unconsciousness and can even be fatal.
From BBC ● Apr. 1, 2024
My session is tailored around cardiac arrest—the most likely culprit for unconsciousness because of my age and lack of other ailments; other patients might receive more specific disease planning or medical advice.
From Slate ● Feb. 13, 2024
I just lay there, helpless, swimming toward unconsciousness.
From "Shelter (Book One): A Mickey Bolitar Novel" by Harlan Coben
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Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
