From WordNet (r) 3.0 (2006):
mad
adj 1: roused to anger; "stayed huffy a good while"- Mark Twain;
"she gets mad when you wake her up so early"; "mad at his
friend"; "sore over a remark" [syn: huffy, mad,
sore]
2: affected with madness or insanity; "a man who had gone mad"
[syn: brainsick, crazy, demented, disturbed, mad,
sick, unbalanced, unhinged]
3: marked by uncontrolled excitement or emotion; "a crowd of
delirious baseball fans"; "something frantic in their
gaiety"; "a mad whirl of pleasure" [syn: delirious,
excited, frantic, mad, unrestrained]
4: very foolish; "harebrained ideas"; "took insane risks behind
the wheel"; "a completely mad scheme to build a bridge
between two mountains" [syn: harebrained, insane, mad]