unaware
Americanadjective
adverb
adjective
-
(postpositive) not aware or conscious (of)
unaware of the danger, he ran across the road
-
not fully cognizant of what is going on in the world
he's the most unaware person I've ever met
adverb
Other Word Forms
Etymology
Origin of unaware
First recorded in 1585–95; un- 1 + aware; compare Middle English unywar ( see y-)
Explanation
Unaware is simply the opposite of "aware." If you are unaware, you have no idea what's going on. To be unaware is to be totally incognizant (but not incontinent). To be "caught unawares" means you were caught off guard or by surprise. Either way you've got your head in the clouds about something. Now some people might say that ignorance is bliss, but the guy in the crosswalk who was unaware of the bus barreling down on him at full speed might disagree.
Vocabulary lists containing unaware
Novel Study: Of Mice and Men, Chapters 1–3
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Twenty Thousand Leagues Under the Sea
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"Shakespeare dumbed down in comic strips for bored pupils"
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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.
The model was particularly efficient at identifying vulnerabilities that developers and users had been previously unaware of.
From Barron's • May 7, 2026
Judges don’t need to just pretend to be unaware of basic facts about the world.
From Slate • May 4, 2026
Botstein has previously apologized for associating with Epstein, said he was unaware of the extent of his behavior and said he met with him to fundraise for the school.
From The Wall Street Journal • May 2, 2026
If you’re unaware, think confident, unpredictable and hilarious improv at its finest.
From Los Angeles Times • Apr. 29, 2026
But since I was not pretty, and far too bashful to express my feelings, a whole generation of boys was growing up unaware of the girl in seat 32.
From "The Hiding Place" by Corrie ten Boom
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
