Finding synonyms for the word "more freighted" implies looking for another way to express the idea of something being loaded with weight or importance. Some options could be "more burdened", which emphasizes the heaviness of the load, as well as "more laden", which adds a sense of being filled to capacity. Another possibility is "more significant", as the freight in question may carry a lot of value or meaning. "More consequential" works similarly, highlighting the potential impact of the freight. Overall, the goal is to convey the idea of something being heavily weighted or deeply meaningful in a way that engages the reader or listener.