Obscureness

from WordNet (r) 3.0 (2006)

obscureness
    n 1: the state of being humble and unimportant [syn:
         {humbleness}, {unimportance}, {obscureness}, {lowliness}]
    2: the state of being indistinct or indefinite for lack of
       adequate illumination [syn: {obscurity}, {obscureness}]
    3: the quality of being unclear or abstruse and hard to
       understand [syn: {obscureness}, {obscurity}, {abstruseness},
       {reconditeness}] [ant: {clarity}, {clearness}, {limpidity},
       {lucidity}, {lucidness}, {pellucidity}]

from The Collaborative International Dictionary of English v.0.48

Obscureness \Ob*scure"ness\, n.
   Obscurity. --Bp. Hall.
   [1913 Webster]