The antonyms for 'going on foot' are numerous and varied, as they can range from modes of transportation that are heavily motorized and modern, to those that are a bit more traditional and old-fashioned. For instance, one antonym for 'going on foot' might be using a car, truck, or other motor vehicle to travel to a destination quickly and efficiently. Alternatively, one could also use a bicycle or skateboard to cover ground quickly without using one's legs. Other possible antonyms might include riding a horse, taking a train or bus, or even using various forms of air travel, such as planes, helicopters, or hot air balloons. Ultimately, the choice of antonym will depend on the specific circumstances and preferences of the individual traveler.