stiffen
verb (used with object)
to make stiff.
stiffening
-
present participleof stiffen.present participle
A verb form that is used in progressive verb constructions and may also function as a modifier or a gerund.
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.
Softening rather than stiffening when moving through space requires embracing your body’s natural sway and tiny micro-movements, like an ankle wobbling or knee jiggling.
From Los Angeles Times ● Aug. 18, 2026
It’s hard to imagine a greater accomplishment than to achieve peace while stiffening the sinews of deterrence.
From The Wall Street Journal ● Mar. 1, 2026
"Our observations are consistent across multiple length scales and link connective tissue stiffening to altered biochemical signaling in cancer cells."
From Science Daily ● Jan. 24, 2026
No wonder OpenAI’s Sam Altman issued a “code red” alert to employees urging them to step up the pace of chatbot development in the face of stiffening competition from the likes of Google’s Gemini.
From Barron's ● Dec. 3, 2025
“Here, now!” cried Teece, stiffening up, tall, tall.
From "The Martian Chronicles" by Ray Bradbury
