Pronunciation IPA (key): /ˈmæd/ Audio (US)(file) Adjective Positive mad Comparative madder Superlative maddest If you are mad, you are angry. Synonyms: angry and furious I am so mad at you for ruining my painting. If you are mad, you are insane. Synonyms: insane and crazy He says he hears voices. I think he's gone mad! Wikiwand - on Seamless Wikipedia browsing. On steroids.Remove ads