Definitions

1. adjective

made or done too slightly, especially with the result of being faint or inconspicuous; insufficiently detailed or expressed

“The artist’s underdrawn pencil sketch failed to capture the beauty of the sunset.”

2. noun

a drawing or sketch made before a more detailed work, especially in the process of creating a piece of art

“The painter’s underdrawn sketch of the cityscape served as the foundation for her final artwork.”