incredulity in a sentence

Definition

Incredulity is the state of being unwilling or unable to believe something; disbelief.

Her face was a mask of incredulity when she heard the unexpected news.
The scientist's incredulity was evident as he reviewed the results of the experiment.
Despite his incredulity, he decided to investigate the mysterious phenomenon further.
She could hardly contain her incredulity at the outrageous claim he made.
His incredulity turned to laughter when he realized it was all a prank.