- present participle of concern.
concerning
Americanpreposition
adjective
preposition
adjective
Etymology
Origin of concerning
First recorded in 1375–1425; concern ( def. ) + -ing 2 ( def. )
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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.
Foreign Minister Winston Peters, who described China's ballistic missile test as "deeply concerning", said Pacific leaders have long sought a Pacific-led response to regional security issues.
From Barron's • Jul. 9, 2026
An apparent marketing push towards younger users is concerning health experts.
From BBC • Jul. 8, 2026
While the magnitude of the selloff may seem concerning, some analysts think it’s a natural progression following a big run-up.
From MarketWatch • Jul. 8, 2026
“We weren’t seeing many soils with concerning elevated levels of metal, so gardeners should not be too alarmed when these things happen.”
From Los Angeles Times • Jul. 8, 2026
The old man had a stooped back, a sagging belly, and a concerning amount of white hair peeking out of his ears.
From "Beasts of Prey" by Ayana Gray
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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.