Definition of "meanness"

This figure is of a later date, by the meanness of the workmanship.

1705, J[oseph] Addison, “Florence”, in Remarks on Several Parts of Italy, &c. in the Years 1701, 1702, 1703, London: […] Jacob Tonson, […]

There are enough meannesses in everyone — ourselves included — to make for us a contemptible world, if we select the meannesses and let our minds dwell upon them.

1908, The World's Work, volume 16, page 10497