Treat adjectives are listed in this post. Each word below can often be found in front of the noun treat in the same sentence. This reference page can help answer the question what are some adjectives commonly used for describing TREAT.
added, big, delectable, delicious, delightful, dutch, extra, favorite
fine, first, frozen, general, good, grand, great, greater
greatest, high, ill, intellectual, literary, little, musical, new
next, nice, occasional, other, particular, perfect, rare, real
refreshing, rich, same, small, special, such, sweet, tasty
unexpected, unusual, visual, welcome, wonderful
Hope this word list had the adjective used with treat you were looking for. Additional describing words / adjectives that describe / adjectives of various nouns can be found in the other pages on this website.