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mad

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The definition of mad is defined as angry, insane, foolish, frantic or extremely funny.

(adjective)

An example of mad is child who is not able to do what he wants to do.
An ecxample of mad is a psychopath.
An example of mad is a plan to rob a police station.
An example of mad is someone getting worked up about possibly getting into trouble.
An example of mad is the comedy of George Carlin.

See mad in Webster's New World College Dictionary

mentally ill; insane
wildly excited or disorderly; frenzied; frantic: mad with fear
showing or resulting from lack of reason; foolish and rash; unwise: a mad scheme
blindly and foolishly enthusiastic or fond; infatuated: to be mad about clothes
wildly amusing; hilarious: a mad comedy
having rabies: a mad dog
1. angry or provoked: often with at
2. showing or expressing anger

Origin: ME madd, aphetic < OE gemæd, pp. of (ge)mædan, to make mad, akin to Goth gamaiths, crippled, OS gimēd, foolish < IE *mait- < base *mai-, to hew, cut off > Goth maitan, to hew, Gr mitylos, dehorned

transitive verb, intransitive verb madded, madding

Archaic to madden

noun

an angry or sullen mood or fit

noun

the theory that the possession of equally devastating nuclear weapons by superpowers will deter each from attacking another or its allies

Origin: m(utual) a(ssured) d(estruction)

See mad in American Heritage Dictionary 4

adjective mad·der, mad·dest

Angry; resentful. See Synonyms at angry.
Suffering from a disorder of the mind; insane.
Temporarily or apparently deranged by violent sensations, emotions, or ideas: mad with jealousy.
Lacking restraint or reason; foolish: I was mad to have hired her in the first place.
Feeling or showing strong liking or enthusiasm: mad about sports.
Marked by extreme excitement, confusion, or agitation; frantic: a mad scramble for the bus.
Boisterously gay; hilarious: had a mad time.
Affected by rabies; rabid.