concerning
prepositionDefinition of concerning
(Entry 1 of 2)
: relating to : regarding
concerning
adjectiveDefinition of concerning (Entry 2 of 2)
: causing concern or worry : creating reason for concern : troubling
found the latest reports very concerning "It's extremely concerning that drivers still choose to give their attention to things other than the road when they're behind the wheel," said [Texas Department of Transportation] Executive Director James Bass. — The Nueces County Record Star … carbapenems should not be administered to patients with positive penicillin skin test results or a concerning history of a type I allergic response to penicillin.— Alan R. Salkind et al.
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Merriam-Webster unabridged
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Time Traveler for concerning
The first known use of concerning was in 1535
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