IPA: /ˈloʊnliɪst/
KK: /ˈloʊnliɪst/
The state of being the most alone or isolated, feeling sad because there is no one to share experiences with.
After moving to a new city, she felt like the loneliest person in the world.
Comparative: lonelier
Superlative: loneliest
Loneliest → It is formed from "lone" (from Old English *anleof*, meaning alone or solitary) and the superlative suffix "-est" (meaning most). The word "loneliest" means the most alone or solitary.
Think of being 'alone' ('lone') and the '-est' indicating the highest degree — that's why loneliest means the most alone.