Apparently not, because poor old ‘concerning’ has had the word equivalent of gender reassignment. For years it’s happily chugged along as a preposition meaning ‘about’. Now, ‘common (mis)usage’ has deemed it an adjective as well. It’s been roped in to join the extensive list of fine words which has managed to convey unease for longer than anyone can remember.
So the next time the prime minister, or your boss, says ‘It’s deeply deeply concerning concerning the situation’ they don’t (necessarily) need to change their medication. They’re just showing what a limited vocabulary they have. Most of us are content to draw on 20,000 to 35,000 of the approximate 170,000 words available in English. But it seems that the more ‘modern’ we are the lazier we become.