Pronunciation: (mit'i-gāt"), [key]
—v., -gat•ed, -gat•ing.
1. to lessen in force or intensity, as wrath, grief, harshness, or pain; moderate.
2. to make less severe: to mitigate a punishment.
3. to make (a person, one's state of mind, disposition, etc.) milder or more gentle; mollify; appease.
to become milder; lessen in severity.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.