mitigation
[noun]
Synonyms: relief, alleviation, diminution, extenuation, moderation, remission

[TahlilGaran] English Synonym Dictionary ▲

mit‧i‧ga‧tion /ˌmɪtəˈɡeɪʃən, ˌmɪtɪˈɡeɪʃən/ noun [uncountable]

1. in mitigation law if you say something in mitigation, you try to make someone’s crime or mistake seem less serious or show that they were not completely responsible:
The captain added, in mitigation, that the engines may have been faulty.

2. formal a reduction in how unpleasant, harmful, or serious a situation is:
His marriage had brought a slight mitigation of the monotony of his existence.

[TahlilGaran] Dictionary of Contemporary English ▲