"Sweeping changes" refers to a significant or extensive revision or transformation affecting a wide range of things or a particular field. It signifies a large-scale alteration that has a broad and profound impact or influence. Full definition
The reaction was swift, as state legislators and policymakers across the country made sweeping changes in areas that had long been dormant. (educationnext.org)
To a degree, technology has made sweeping changes in lawyers practice. (lawyerist.com)
The bill called for sweeping changes to current tax law. (smartasset.com)