noun
- the quality or state of being not serious; lack of gravity or earnestness
Usage: formal
Examples
- The teacher was concerned about the unseriousness of the students during the important lecture.
- His unseriousness at the meeting made others question his commitment to the project.
- The unseriousness of the situation was evident from everyone’s laughter.
- She tried to mask her nervousness with an air of unseriousness.
- The committee criticized the proposal’s tone of unseriousness.
- Despite the gravity of the issue, there was an underlying unseriousness in the discussion.