The intended slight was emphasised by ... and by the uniform wording of the notes, in all of which the writers "regretted that they were unable to accept," without the mitigating plea of a "previous engagement" that ordinary courtesy prescribed.
But Newport represented the escape from duty into an atmosphere of unmitigated holiday-making.
There are no more uses of "mitigate" in the book.
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Don’t judge her so harshly until you consider the mitigating circumstances.
The new factory is building privacy walls to mitigate its impact on neighbors.