readability
  易讀,讀得津津有味,可讀性
  Read·a·bil·i·ty n. The state of being readable; readableness.
  ◄ ►
  readability
       n 1: the quality of written language that makes it easy to read
            and understand
       2: writing (print or handwriting) that can be easily read [syn:
           legibility] [ant: illegibility]