"Drastic action" refers to taking bold and extreme measures in order to achieve a desired outcome or solve a problem. It involves making significant changes or taking severe steps, often when other solutions have not been effective. Full definition
I understand how you might emotionally feel like taking drastic action on your debts with the changes in your life. (getoutofdebt.org)
It claims there is a «threat of drastic action» if they do not «comply». (schoolsweek.co.uk)
Whether fans will care enough to take such drastic action is the real question upon which our future as a top club may, or rather will, depend. (justarsenal.com)