Synonyms of the word 
VISIBLENESS → PERCEPTIBILITY - VISIBILITY
visibleness
- n. The state or quality of being visible.
perceptibility
- n. The state, quality, or condition of being perceptible.
visibility
- n. (uncountable) The condition of being visible.
- n. (countable) The degree to which things may be seen.
- n. (programming) The scope within which a variable or function is able to be accessed directly.
If you are interested in words, visit the following sites :
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- 1word.ws/visibleness to play with words, suffixs, prefixs, etc.