Fore-run means to run ahead, but there are various antonyms for this word that denote the opposite action. The first antonym is lag or trail, which means to fall behind or move more slowly than others. Another antonym is follow, which means to come after someone or something. Then, there is also the antonym, succeed, which means to replace or come next to someone or something. Lastly, you have the antonym ignore or neglect, which means to not pay attention or give importance to someone or something. Thus, the antonyms of fore-run come with their own unique meanings, all related to the concept of time and motion.