1) Blur 2) Blurriness 3) Fuzziness 4) Imprecision 5) Invisibility 6) Vagueness 1) Blurriness 2) Fogginess 3) Fuzziness 4) Opacity 5) Opaqueness 
• (n.) The quality or condition of being indistinct; want of definiteness; dimness; confusion; as, the indistinctness of a picture, or of comprehension; indistinctness of vision.
In`dis·tinct'ness noun The quality or condition of being indistinct; want of definiteness; dimness; confusion; as, the indistinctness of a picture, or of comprehension; indistinctness of vision. 
[n] - the quality of being indistinct
softness 5 blurriness noun the quality of being indistinct and without sharp outlines