intelligible intelligible /ˌɪnˈtɛlədʒəbəl/

adjective

1. () Capable of being apprehended or understood  ( apprehensible , graspable , perceivable , intelligible , understandable )
   capable of being apprehended or understood
     Her frustration was understandable given the circumstances.
   Her frustration was understandable given the circumstances.
   
2. Well articulated or enunciated, and loud enough to be heard distinctly  ( intelligible )
   well articulated or enunciated, and loud enough to be heard distinctly
    Intelligible pronunciation
   intelligible pronunciation