The word "bi-cycled" refers to riding a bicycle with two wheels. The antonyms for this word are numerous, as they could include any type of transportation that is not a bicycle. One likely antonym would be "driven," which pertains to operating a vehicle with an engine. Another possible antonym could be "walked," which represents traveling by foot instead of by bike. Additionally, words like "skated," "rolled" or "scooted" could also serve as antonyms depending on context. Ultimately, selecting the correct antonym for "bi-cycled" requires an understanding of the type of transportation being referenced and the appropriate word choice to contrast it.