mad

adjective
\ ˈmad \
madder; maddest

Definition of mad 

(Entry 1 of 5)

1 : arising from, indicative of, or marked by mental disorder not used technically

2a : completely unrestrained by reason and judgment : unable to think in a clear or sensible way driven mad by the pain mad with jealousy

b : incapable of being explained or accounted for a mad decision

3 informal : intensely angry or displeased What are you so mad about? Everyone was mad about the delay. That kind of behavior really gets me mad. I'm so mad I could spit.

4 : carried away by enthusiasm or desire : extremely or excessively fond of or enthusiastic about something or someone mad about horses … there is a nouveau riche demographic mad for diamonds and Lamborghinis … —Kevin D. Williamson often used in combination trivia known to only the most movie-mad film buffsa power-mad villainmoney-mad

5 : affected with rabies : rabid a mad dog

6 : marked by wild gaiety and merriment : hilarious of their childhood, of the mad pranks they played —Winston Churchill

7 : intensely excited : frantic driving him mad with jealousy —Edmund Wilson

8 : marked by intense and often chaotic activity : wild a mad scramble

9 US, informal : great in quantity, amount, extent, or degree making mad money Her performance won her mad respect from fans and peers alike, but the media response was tempered at best. —Joan Morgan

like mad

: to an extreme degree spending like mad working like mad to get the job done on time

mad

verb
madded; madding

Definition of mad (Entry 2 of 5)

: madden

mad

noun

Definition of mad (Entry 3 of 5)

1 : a fit or mood of bad temper

2 : anger, fury

mad

adverb

Definition of mad (Entry 4 of 5)

informal

: very, extremely We were mad tight, many of us born and raised in this same spot. —Sister Souljah

Definition of MAD (Entry 5 of 5)

mutual assured destruction; mutually assured destruction

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Other words from mad

Adjective

maddish \ˈma-dish \ adjective

Examples of mad in a Sentence

Adjective

If you keep teasing that dog, you'll make him mad. What are you so mad about? That guy makes me so mad! a movie about a mad scientist She's mad for a cute boy in her class. He's mad keen on sailing.

Verb

her endless excuses for not doing the work madded her overburdened coworkers

Noun

watch out, the boss has got a bit of a mad on just now
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Recent Examples on the Web: Adjective

From insulated water bottles to portable toilet-paper rolls, here's what our staff never leaves home without Outside staffers love to get outside and when the workday ends, there's a mad dash for the hiking, biking, and running trails. The Editors, Outside Online, "The Gear We Carry in Our Daypacks," 17 Apr. 2018 Trump, who landed in Belgium during the middle of the soccer-mad nation’s World Cup semifinals match, will later head to London, where Prime Minister Theresa May’s government is in turmoil over her plans for exiting the European Union. Jill Colvin, The Seattle Times, "Trump lands in Europe, says Putin ‘easiest’ of his meetings," 10 July 2018 Trump reportedly has distanced himself from Cohen, and Cohen is big mad that the president isn’t paying any of his legal fees. Stephen A. Crockett Jr., The Root, "Michael Cohen Breaks Up With Trump and Makes It Social-Media Official," 5 July 2018 People were very mad that Bryce basically got a slap on the wrist for his actions. Victoria Rodriguez, Seventeen, ""13 Reasons Why" Star Timothy Granaderos Talks About His Most Difficult Scene To Film in Season 2," 30 May 2018 Still, the Wall Street Journal reports this morning that Musk’s mad scramble did finally achieve his goal of producing 5,000 Model 3s in (almost) a week. Alan Murray, Fortune, "Hello AMLO, EU Retaliation, Stocks Stumble: CEO Daily for July 2, 2018," 2 July 2018 Then again, turning a snafu into good PR because you're worried the internet might be mad at you? Cady Drell, Marie Claire, "Taylor Swift and J.K. Rowling Posed for a Selfie and Ignited an Important Debate," 25 June 2018 Or, the committee will recommend keeping the name, and the other side will be mad. Carol Motsinger, Cincinnati.com, "Tribute or racial slur: Is it time for schools to give up Native American mascots?," 11 June 2018 The cliché of the mad artist is such a staple of this genre that what Deluc and Cassel are attempting to dramatize here – a fusing of the outlaw and the artist – can easily be undervalued. Peter Rainer, The Christian Science Monitor, "'Gauguin: Voyage to Tahiti' chronicles Gauguin’s desire to see a new way," 13 July 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'mad.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of mad

Adjective

before the 12th century, in the meaning defined at sense 1

Verb

14th century, in the meaning defined above

Noun

1834, in the meaning defined at sense 1

Adverb

1895, in the meaning defined above

History and Etymology for mad

Adjective

Middle English medd, madd, from Old English gemǣd, past participle of *gemǣdan to madden, from gemād silly, mad; akin to Old High German gimeit foolish, crazy

Verb

see mad entry 1

Noun

see mad entry 1

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Statistics for mad

Last Updated

11 Sep 2018

Look-up Popularity

Time Traveler for mad

The first known use of mad was before the 12th century

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More Definitions for mad

mad

adjective
\ ˈmad \
madder; maddest

Kids Definition of mad

1 : angry He's mad at his brother.

2 : insane sense 1 … has the whole world gone mad today? —Christopher Paul Curtis, The Watsons

3 : done or made without thinking a mad promise

4 : infatuated She is mad about horses.

5 : having rabies a mad dog

6 : marked by intense and often disorganized activity At the end of the game, there was a mad scramble.

like mad

: with a great amount of energy or speed The crowd cheered like mad. He ran like mad.

Other words from mad

madly adverb
madness noun

mad

adjective
\ ˈmad \
madder; maddest

Medical Definition of mad 

1 : arising from, indicative of, or marked by mental disorder not used technically

2 : affected with rabies : rabid

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Comments on mad

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