›a reduction in how harmful, unpleasant, or bad something is: mitigation of sthThe planning process should have addressed mitigation of damage to the environment.a mitigation plan/measure/projectFor every possible problem, there must be a mitigation measure in the plan.mitigation funds/grants/moneyThe victims received federal aid in the form of disaster mitigation funds.mitigation costs/fees
in mitigation›LAWin order to try to make a crime seem less serious: The defence lawyer also said in mitigation that her client didn't personally profit from the collapse of the finance company.