i Register
In some senses, mitigate is marked as obsolete. Watch for register when choosing this word.
verb
To reduce, lessen, or decrease and thereby to make less severe or easier to bear.
Measures are pursuing to prevent or mitigate the usual consequences of such outrages, and with the hope of their succeeding at least to avert general hostility.
But in yielding to it the retaliation has been mitigated as much as possible, both in its extent and in its character...
To downplay.
To give force or effect toward preventing a problem.
We've mitigated against the chance of flooding.
adj
Mitigated, alleviated.