Beetle-browed adj. Having prominent, overhanging brows; hence, lowering or sullen. Note: The earlier meaning was, "Having bushy or overhanging eyebrows."
... screws of the taxi sank from their high whine to a groan, and the wheels came to the ground before the company office. A man in the Martian army uniform came out. His beetle-browed face was truculent, and his hand rested on the hilt of ... — The Martian Cabal • Roman Frederick Starzl