stubbliest
/ˈstʌbliːɪst/Definitions
1. adjective
Having the most stubble, especially on the chin.
“He was considered the stubblest among the group, with a thick five o’clock shadow.”
2. comparative adjective
Comparing two things, with the first being more stubbly than the second.
“John was stubblest than his brother, who only had a light beard.”