Definition of "imperviousness" [imperviousness]

• The state of being impervious (noun)

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• "At a subsequent session, the group ranked each Republican on a scale of 1 to 10 in four categories: capability, trust, devotion and what they called their imperviousness to material and spiritual corruption."
• "But her ironies were as ineffectual as her arguments, and his imperviousness was the more exasperating because she divined that some of the things she said would have hurt him if any one else had said them: it was the fact of their coming from her that made them innocuous."
• "This value did not does not? exist for Generation X because of that generation's "imperviousness" to marketing, particularly from majors."