non-aerodynamic

Definitions

Not designed or shaped to reduce air resistance or drag.

Lacking the characteristics that allow for efficient movement through the air.

Examples

The boxy shape of the old van makes it highly non-aerodynamic, resulting in poor fuel efficiency at high speeds.

Because the cyclist was wearing a loose, flapping jacket, his posture became non-aerodynamic and slowed him down significantly.

Synonyms

blunt drag-inducing unstreamlined inefficient boxy wind-resistant

Antonyms

aerodynamic streamlined sleek hydrodynamic wind-resistant low-drag