1. A rough, disorganized, or hastily drawn preliminary drawing or outline, often with unclear lines, crossed-out sections, or poor composition
The artist's messy sketch eventually became a masterpiece.
O esboço desorganizado do artista eventualmente se tornou uma obra-prima.
2. A preliminary or rough version of any visual work that lacks clarity, order, or refinement
He showed me a messy sketch of his new design before finalizing it.
Ele me mostrou um rascunho bagunçado de seu novo design antes de finalizá-lo.