The word "most sweetscented" refers to something that has a pleasant aroma or fragrance. Antonyms for this term would include words like malodorous, stinky, foul-smelling, and putrid. These words describe things that have an unpleasant, offensive, or repulsive odor. Some examples of malodorous items include rotting food, garbage, and decaying flesh. Stinky can describe things like sweaty clothes, dirty diapers, or wet dogs. Foul-smelling can refer to chemicals, sewage, and other strong odors. Putrid usually describes things that have started to decompose, such as dead animals or spoiled food. Overall, the antonyms for "most sweetscented" are words that describe bad smells instead of good ones.