reachability 

ability to be reached. Term used in networking.

Please test the reachability of that node/host/router/switch

reachability by mr_p April 18, 2007

rewatchability 

The ability to watch a movie repeatedly without becoming nauseated by it.

Equilibrium has great action sequences. I could watch it again and again. It has rewatchability.

rewatchability by freja07 June 17, 2007

readability

not a word, according to JA, the word guru.

want to know something that's not a word? readability.

readability by Jake Steen March 3, 2005