Search Result for "invisibleness": 
Wordnet 3.0

NOUN (1)

1. the quality of not being perceivable by the eye;
[syn: invisibility, invisibleness]



The Collaborative International Dictionary of English v.0.48:

Invisibleness \In*vis"i*ble*ness\, n.
   The quality or state of being invisible; invisibility.
   [1913 Webster]


WordNet (r) 3.0 (2006):

invisibleness
    n 1: the quality of not being perceivable by the eye [syn:
         invisibility, invisibleness] [ant: visibility,
         visibleness]