stiffen
Americanverb (used with object)
verb (used without object)
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to become stiff.
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to become suddenly tense, rigid, or taut, as in bracing oneself for or drawing back from shock, fear, or displeasure.
He stiffened, expecting to hear the worst.
verb
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to make or become stiff or stiffer
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(intr) to become suddenly tense or unyielding
Other Word Forms
- overstiffen verb
- stiffener noun
- unstiffened adjective
Etymology
Origin of stiffen
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.
She has also vowed to stiffen prison sentences and to impose a state of emergency in areas worst hit by crime.
From Barron's • Feb. 1, 2026
Redick looked as if he might stiffen under the postseason spotlight, the rookie coach uncharacteristically a man of few words and no smiles in his pregame news conference.
From Los Angeles Times • Apr. 20, 2025
Nonetheless, this is an important move that can help stiffen the spines at other schools.
From Salon • Apr. 16, 2025
The summit in London was an attempt by the prime minister both to calm diplomatic brows and stiffen diplomatic sinews.
From BBC • Mar. 2, 2025
Ray reaches over and half hugs me, but I stiffen, so he knocks me gently on the head with his fist.
From "The Tenth Mistake of Hank Hooperman" by Gennifer Choldenko
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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.