Vehiculate is a word that means to transport or convey. Antonyms for vehiculate would be words that mean the opposite, such as immobile or stationary. Other antonyms could include words that imply a refusal to move, such as resist or obstruct. In terms of transportation, antonyms could be words that express a lack of movement, such as park or halt. Additionally, antonyms for vehiculate could include words that suggest a reversal of direction, such as backpedal or retrace. Overall, there are many antonyms for vehiculate depending on the context and meaning of the word.