Serriedness is when things are arranged very close together in a line or rows, especially people or objects.
Serriedness can show organization and discipline, but it can also feel crowded or oppressive.
Examples:
The soldiers stood in serriedness, ready for inspection.
The serriedness of the books on the shelf made it hard to find the one I wanted.
In the crowded city, the serriedness of the buildings made me feel small.
The serriedness of the toys in the box made it hard to close the lid.
The serriedness of the trees in the forest made it hard to walk through.
The serriedness of the ants marching in a line was impressive.