flaw
1 Americannoun
-
a feature that mars the perfection of something; defect; fault.
beauty without flaw; the flaws in our plan.
- Synonyms:
- spot, blot, imperfection
-
a defect impairing legal soundness or validity.
-
a crack, break, breach, or rent.
verb (used with object)
verb (used without object)
noun
-
Also called windflaw. a sudden, usually brief windstorm or gust of wind.
-
a short spell of rough weather.
-
Obsolete. a burst of feeling, fury, etc.
noun
-
an imperfection, defect, or blemish
-
a crack, breach, or rift
-
law an invalidating fault or defect in a document or proceeding
verb
noun
-
-
a sudden short gust of wind; squall
-
a spell of bad, esp windy, weather
-
-
obsolete an outburst of strong feeling
Synonym Usage
See defect.
Other Word Forms
Etymology
Origin of flaw1
First recorded in 1275–1325; Middle English flage, flaw(e), perhaps from Old Norse flaga “sliver, flake”
Origin of flaw2
First recorded in 1475–85, flaw is from the Old Norse word flaga attack, squall
Explanation
A flaw can be a sign of weakness or defect. If you try to make wings and fly off the roof but wind up crashing in the gutter, there's a flaw in your plan. In the early 14th century, when the noun flaw was first recorded, it referred to a snowflake or spark of fire. That sense is now obsolete, and now we use flaw to describe shortcomings in either character or object. We all have flaws. It can also describe an intentional mark of imperfection. “You see,” said the dancer Martha Graham, “when weaving a blanket, an Indian woman leaves a flaw in the weaving of that blanket to let the soul out.”
Vocabulary lists containing flaw
Where the Mountain Meets the Moon
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"The Tragedy of Macbeth," Vocabulary from Act 3
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Talk Like Shakespeare Day, List 5
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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.
Another flaw: “soft-story” buildings, where the ground floor is flimsier than the upper floors, making it easier for it to topple in a quake.
From Los Angeles Times • Jun. 27, 2026
“The fundamentals wouldn’t necessarily say there’s a significant issue here,” he said, adding that this is why the company views its capping mechanism as “a feature and not a flaw of the structure.”
From MarketWatch • Jun. 24, 2026
He said he was "shocked" by the "flaw in the model" of economic behavior he had long relied on.
From Barron's • Jun. 22, 2026
At the Stanford conference, Fed governor Christopher Waller suggested Goolsbee’s case has a flaw.
From The Wall Street Journal • Jun. 19, 2026
The flaw in such reasoning, however, would have been obvious to any accountant or investment banker with a modicum of Hamiltonian wisdom.
From "Founding Brothers: The Revolutionary Generation" by Joseph J. Ellis
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.
