From Longman Dictionary of Contemporary Englishmitigationmit‧i‧ga‧tion /ˌmɪtəˈɡeɪʃən/ noun [uncountable] 1 → in mitigation2 formalREDUCE a reduction in how unpleasant, harmful, or serious a situation is His marriage had brought a slight mitigation of the monotony of his existence.
Examples from the Corpus
mitigation• Apart from mitigation, these actions can include some adaptation and response measures, preparation of National Communications, and capacity building.• In mitigation Michael Rayner said his client had been deeply depressed in the days leading up to the incident.• In mitigation Ronald Coia said his client was suffering from deep depression because his business had failed.• Even with that lesser verdict there was plenty of mitigation.• Or the landowner could propose some mitigation.• Production can not be an incidental to the mitigation of inequality or the provision of jobs. 