Wordless Novel.
Sounds like an oxymoron, right? But long-form-picture-books-for-adults have been around for about a century. You probably know some of them – you might even love a particular children’s picture book or graphic novel!
Let’s start with the dinosaurs. Early artists in the genre used some form of woodcut for their medium, as it lent itself to reproduction. Audiences, entranced by silent Moving Pictures, were adapt at reading gesture and pantomimed emotion.
After World War I (1914-18) disillusioned artists in Europe created dark, disillusioned art. The movement was called Expressionism. Most of the best Expressionists were Germans; Germany having lost the bloodbath. Franz Masereel used woodcuts to create passionate social critiques, such as Passionate Journey(1919) and The City(1925).
During the Great Depression (1930-39) American artists picked up the wordless banner. Immensely popular though now forgotten, Lynd Ward did 6 books that grabbed the American imagination. God’s Man (1929) and Wild Pilgrimage (1932) show individuals struggling against a remorseless state with unionism offering salvation.
With the coming of Talkies and American triumphalism, wordless novels faded. Comics for adults were on the radio, then television. With the rise of 
“underground comix” in the ‘60’s, a few wordless stories mixed
with the rest of the stoner fare. This led to the creation of graphic novels (at first compilations of comic book stories). Graphic novels began to be taken seriously with the publication of Art Speigelman’s Maus(1991).
Now we are in a Golden Age of graphic novels, many of which are not only wordless but beloved by the multitudes. Read The Arrival (2006) by Shaun Tan, The Mysteries of Harris Burdick(1984) by 
Chris Van Allsburg, if you want to start at 
the top. Thomas Ott offers are dark view to match his dark vision, if you’re into dark. There are tons more out there, and Google can lead you down that wonderfully silent rabbit hole.
And, of course, there’s me. I have a sweet wordless novel done in scratchboard called Fetch and (why I’m writing) a new wordless novel in color called Owl Girl.
Check them out.