IPA: /ˈsʌl.ki/
KK: /sʌlki/
The most moody or silent because of being upset or annoyed.
After losing the game, he was the sulkiest player on the team.
Comparative: sulkier
Superlative: sulkiest
**Sulkiest** → It is formed from "sulk" (from Old English *solcian*, meaning to be sullen or moody) and the suffix "-iest" (meaning most). The word "sulkiest" describes someone who is in the most sullen or moody state.
Think of someone who is being the 'most sullen' or 'moody' — that's what sulkiest means.