There were also issues with the lack of seriousness in the system.

In other jokes however, the lack of seriousness is more subtle.

He criticised lack of seriousness and organisation within the party.

He has shown that laughter is not a lack of seriousness.

He and his aides said the postponement showed a "lack of seriousness" by federal officials.

For biography, it is nothing special; anything less suggests a certain lack of seriousness.

There is no room for a lack of seriousness.

There is a lack of seriousness, transparency and honesty in this area.

There was no lack of seriousness and toughness. Who could think otherwise?

Some historians have criticized the magazine for what they say is a lack of seriousness.