curvy
Having smooth, rounded shapes instead of straight lines.
Curvy describes something with smooth, rounded bends rather than straight lines or sharp angles. A winding mountain road is curvy, requiring drivers to steer left and right as they follow its curves. A curvy river meanders through the landscape in graceful loops instead of flowing straight. In geometry class, you might draw curvy lines that bend and wave across the page, contrasting with the straight edges of triangles and rectangles.
The word often describes shapes in nature: the curvy path a snake makes as it slithers, the curvy outline of hills against the sky, or the curvy design of a seashell. Architects and designers use curvy forms to make buildings and furniture feel more flowing and organic. The famous architect Antoni Gaudí created buildings in Barcelona with walls so curvy they look like they're melting or alive.