Adjective
horseless (not comparable)
Not having a horse.
Battle of Taginae. 437. The reasons why the Goths attacked horseless is unknown, but the suddenness of the attack seemed to be the reason that Narses fought horseless as well. Source: Internet
On this Thanksgiving Day in 1895, piloting a gas-powered “horseless carriage” of his and his brother’s own design, the mechanic, inventor and now racecar driver Frank Duryea wins the first motor-car race in the United States. Source: Internet
It was a horseless carriage, one with an internal-combustion engine that ran on gasoline. Source: Internet