alternative form of indescribable
Impossible, or very difficult to describe.
"He proved it with indescribable mathematics."
Exceeding all description.
"Our hotel had an indescribable view of the Bay of Naples."
too unusual, extreme, or indefinite to be adequately described; indescribable
"the very horrible, virtually undescribable quality of the urban poor"
too unusual, extreme, or indefinite to be adequately described
"most prisoners suffered indescribable hardship"
Incapable of being described.
defying expression or description;
"a thing of untellable splendor"