Antonym of MALFORMED

fetid
sketchy
curvaceous
shapely

The correct answer is D. shapely.

A malformed object is one that is not well-formed or has been damaged. The opposite of malformed is shapely, which means having a pleasing or attractive shape.

The other options are not antonyms of malformed. Fetid means having a strong, unpleasant smell. Sketchy means not detailed or complete. Curvaceous means having a rounded or curved shape.