The phrase "worrying impression" is correct and can be used in written English.
It is typically used to describe a feeling of concern or unease that someone may have about a particular situation or topic. Example: "Her constant fidgeting and avoidance of eye contact gave me a worrying impression that she was hiding something from me."
Mr Saakashvili's impulsive temperament, coupled in some cases with a blind eye to his friends' flaws, have created a worrying impression of both cronyism and a liking for a brusque, even bullying, style.
This can be quite confusing when you first start, as you often hear the rumbling sound of air turbulence moving through the deceased's chest, which gives the worrying impression that they might still be alive.
That did not escape the notice of the press and, to protests from Italy's Greens, who also belong to the Union, Mr Prodi said it would go ahead at all costs.The episode left a worrying impression of disunity, and distracted attention from the nub of the programme a thoughtful analysis of Italy's economic decline and a programme for reversing it.
He worries what impression the Last Night – "a wonderful thing, great fun" – might send out and that it could "ironically underscore the worries about the disharmony that Brexit might bring".
She overhears her mother and father talking just before they attend the festival, and discovers, to her amazement, that they are worrying about the impression she will make.
She says I'm coming round to her home to do an interview, and she is worrying about the impression her place will make.
Instead of worrying about what impression you're making, let yourself feel free to be expressive.
He is endearingly shy in company and worried about the impression he makes on others.
Actually, they seemed nervous; it occurs to me they may have been more worried by the impression they were making on him than by anything else.
"The production values were so bad on the thing that it's largely meaningless," said the attorney, part of whose job is to worry about the impression potential jurors may have of his client.
She was married, in her 30s, with no kids — and worried about that impression.
