1. the quality of treating serious issues with deliberately inappropriate humor or flippancy

Examples

• His facetiousness during the meeting annoyed his colleagues.
• The teacher was not amused by the student’s facetiousness when discussing the assignment.
• Her facetiousness masked her nervousness about the interview.
• The politician’s facetiousness seemed inappropriate given the gravity of the situation.
• Despite the serious topic, his facetiousness lightened the mood.
• The critic noted the author’s tendency toward facetiousness in serious scenes.