IPA: /ˈmædɪst/
KK: /mædɪst/
Extremely angry or crazy; the most intense state of being mad.
After losing the game, he was the maddest person in the room.
Comparative: madder
Superlative: maddest
Maddest → It is formed from "mad" (from Old English *gemædde*, meaning insane or angry) and the suffix "-est" (meaning the most). The word "maddest" means the most insane or angry.
Think of someone who is the "most insane" or "most angry" — that's what "maddest" conveys.