1. not requiring or using a horse; especially, powered by an engine rather than drawn by horses
Usage: often used historically to describe early automobiles

Examples

• The horseless carriage was a revolutionary invention of the late 19th century.
• Early horseless vehicles were unreliable and difficult to operate.
• The transition from horse-drawn wagons to horseless transportation changed society.
• Horseless carriages gradually replaced traditional modes of transport.
• Inventors competed to perfect the horseless automobile.