1) Diminutiveness 2) Dwarfishness 3) Exility 4) Inferiority 5) Littleness 6) Minuteness 7) Petiteness 8) Puniness 9) Runtiness 10) Stuntedness 11) Tininess 12) Weeness 1) Dumpiness 2) Efficiency 3) Fewness 4) Littleness 5) Meanness 6) Mediocrity 7) Miniaturization 8) Moderation 9) Neatness 10) Paucity 11) Size 12) Squatness 13) Tenuity 14) Tininess 15) Trimness 
• (n.) The quality or state of being small.
Small'ness noun The quality or state of being small. 
[n] - the property of having a relatively small size
littleness noun the property of having a relatively small size