"incredibly impact" is correct and is used in written English.
You can use it to emphasize how great the impact of something was. For example: "The results of his hard work were incredibly impactful."
"Businesses are incredibly impacted by weather events and if we look at 2009 there was more than $50bn £32bnn) of losses in the insurance industry alone," says Dr Matt Huddleston, principal consultant at the UK's Met Office.
From this point on my life will be incredibly impacted and I know that my capacity to serve my communities will be much greater.
It has an incredibly negative impact.
Because if you are strategic about it, you can have an incredibly powerful impact with less money.
Artists, musicians, photographers and writers are staying put, and it's having an incredibly positive impact on the city.
It had an incredibly dynamic impact on the space and made you conscious of your own presence in the room, like all good sculpture - not at all dumb.
According to CAMFED, instilling a sense of confidence in their own voice has had an incredibly positive impact on the women's personal development, encouraging them to seek further education, send their own daughters to school and speak out against inequality.
"April's rise came at a time when financial pressures were at an all-time high and it's clear that Labour's record-breaking budget cuts continue to have an incredibly damaging impact," he said.
I chose Ellen as Jesus because of the incredibly positive impact she's had on the masses.
"Even a day or two in jail can have an incredibly destructive impact on someone who can't afford bail," Alyssa Work, a project director at the Fund, told me over email.
