definition of
slightness

[1] #1 slightness n. [pettiness, triviality, puniness] the quality of being unimportant and petty or frivolous. wn

[2] #2 slightness n. [delicacy] smallness of stature. wn

[3] #3 slightness n. [slenderness, slimness] the property of an attractively thin person. wn