Most syrupy refers to something that is excessively sweet or sugary. Antonyms for most syrupy would be words to describe things that are not sweet or overly saccharine. Some opposite words to most syrupy could be bitter, sour, tart, pungent, and savory. Bitter things have a sharp or unpleasant taste, while sour things have a tangy or acidic taste. On the other hand, tart refers to a sourness that is blended with sweetness, like a sour candy. Pungent is a word used for strong, sharp smells or tastes, while savory refers to something having a pleasant taste or smell. All these antonyms provide a stark contrast to the sugary excess of the term most syrupy.