Some descriptive words that begin with Y are:
- yapping
- yappy
- Yavapai
- yearly
- yearning
- yellow
- yielding
- Yonder
- Yorkshire
- young
- your
- youthful
- Yshaped (bent)
- yucky
- yummy
- Youthful
- Young
- Yuck
- Yummy
- Yappy
- Yellow
- Yankee
- Yielding
- Yeasty
- Yammering
- Yawning
- Yearnful
yardman, yeasty, yachtsman, yippie.
young, youthful, yellow, yellowish, yiddish