Wiktionary
perspectiveless
a. Without perspective.
Usage examples of "perspectiveless".
Whistler was returning, swelling against the perspectiveless background.
Passing over them, seeming to pass almost through them in this strange perspectiveless view, were the shadowy forms of giant space liners, titanic streamlined hulls.
Ahead was something perspectiveless, shifting, the only solid focus being a dais with seven hooded figures.
Her perspectiveless face also contorted to smile or grimace, but it was like a disc of paper.
She had only seen flat perspectiveless pictures of a new-penny-colored moon, sent back to Earth.