Definition of "incredulousness" [in•cred•u•lous•ness]

• Incredulity; the state of being skeptical or in disbelief. (noun)

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• "Those who looked up had a shining incredulousness in their eyes."
• "As I expressed my incredulousness about the 9K that was raised in two days for Tristan's record when only 3K was needed, Amanda agreed: Yeah, it's amazing."
• "Phil Angelides, the panel's chairman, could barely contain his incredulousness."