"Waded through" is a phrase commonly used to describe slogging through a difficult or tiresome task. However, there are a variety of synonyms that can be used to add depth and nuance to this phrase. One alternative is "trudged through," which emphasizes the effort required to complete the task. "Navigated through" implies a sense of complexity or obstacles that must be overcome. "Endured" suggests a sense of perseverance in the face of adversity. If the task involved reading or research, "plowed through" or "delved into" might be appropriate. Whatever synonym is chosen, it can help add precision and specificity to one's writing and communication.