|
|
unfathomable, abysmal, abyssal | resembling an abyss in depth; so deep as to be unmeasurable | |
|
|
unfathomable | of depth; not capable of being sounded or measured | |
|
|
unfathomable | impossible to come to understand | |
|
|
incomprehensible, uncomprehensible, unfathomable, fathomless | difficult to understand |