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Traditional definition: involving or referencing something or someone.

Current definition: to be a cause for concern.
Traditional: Myra and her mom had a discussion concerning her grades at school.

Current: Myra's low grades are concerning. She'd better talk to her mom about getting a tutor.
by BornBlitzed April 02, 2017
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Concerning- used as an adjective as opposed to a verb or a phrase as in "of concern". (Used by new age morons that have no real applied usage if sentence construction.)
"It is concerningthat we don't pay attention to actually learning grammar in school these days."
by Terracat November 09, 2017
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