Antonyms for the word "most spangled" include plain, unadorned, simple, austere, and unembellished. These words refer to the opposite of a dazzling or glittering appearance. For instance, plain means having no decorative or attractive features, while unadorned refers to something that lacks embellishments or adornments. Additionally, the word simple denotes a minimalistic and straightforward design, while austere connotes a lack of ornamentation and luxury. Lastly, unembellished suggests that something is without decoration or adornment, and simple in appearance. When one intends to describe something that is not ornate or embellished, any of these antonyms can be used to contrast it with the term "most spangled.