Adjectives that begin with the letter Y are listed in this post.
year-ago, year-earlier, year-end, yearlong, year-long, yearly, year-old, year-on-year, year-over-year, year-round, year-to-year, yellow, yen-denominated
yiddish
york-based, young, younger, youngest, youngish, youthful
yugoslav
yielding
youthless
yeeeeeeeeeeellow
yummy
yummy