The word "routed" means being completely defeated or overpowered, so antonym would mean the opposite meaning, which could be "victorious," "triumphant," "flourishing," "successful," or "thriving." Using these antonyms, the sentence would change from "The army was more routed than ever before" to "The army was victorious and triumphant," "The business was flourishing and successful," or "The community was thriving." By using antonyms, we can convey a positive connotation and give a completely different context to the sentence, changing the meaning from negative to positive.