Question: what are describing words that start with y?
Answer: Yappy - talkative; loquacious. ... 
Yawning - wide open; gaping. ... 
Year-long - lasting the duration of one year. ... 
Yearly - annually; happening every year. ... 
Yeasty - of, like, or containing yeast. ... 
Yellow - the color between orange and green in the color spectrum. ... 
Yellow-bellied - cowardly. ... 
Yellowish - something with a tint of yellow.