Or "näkyvyys" which isn't precisely the same but I prefer it because it's easier to say and easier to spell
Ha, what, you need to go for easy to write and easy to spell words?! Very encouraging for me as a foreigner here...
Hard words... as hard as getting good viz... sorry, näkyvyys around here! OK, it's not so bad
What can also be different is what one considers bad, ok or good viz.