Definitions
American Heritage® Dictionary of the English Language, Fourth Edition
- adj. Angry; resentful. See Synonyms at angry.
- adj. Suffering from a disorder of the mind; insane.
- adj. Temporarily or apparently deranged by violent sensations, emotions, or ideas: mad with jealousy.
- adj. Lacking restraint or reason; foolish: I was mad to have hired her in the first place.
- adj. Feeling or showing strong liking or enthusiasm: mad about sports.
- adj. Marked by extreme excitement, confusion, or agitation; frantic: a mad scramble for the bus.
- adj. Boisterously gay; hilarious: had a mad time.
- adj. Affected by rabies; rabid.
- v. To make or become mad; madden.
- idiom. like mad Informal Wildly; impetuously: drove like mad.
- idiom. like mad Informal To an intense degree or great extent: worked like mad; snowing like mad.
- idiom. mad as a hatter Crazy; deranged.
Century Dictionary and Cyclopedia
- Disordered in intellect; demented; crazy; insane: said of persons.
- Furious from disease or other cause; enraged; rabid: said of animals: as, a mad dog; a mad bull.
- Under the influence of some uncontrollable emotion. Very angry; enraged; furious. [Now chiefly colloq.]
- Wildly or recklessly frolicsome: said of persons or of their acts.
- Excited with immoderate curiosity, longing, admiration, or devotion; infatuated.
- Proceeding from or indicating frenzy; prompted by infatuation or fury.
- Synonyms Deranged, delirious, frenzied, raging.
- 3 . Exasperated.
- n. Madness; intoxication.
- To make mad or furious; distract; enrage; madden.
- To be mad; go mad.
- To rage; fight madly.
- n. A maggot or grub.
- n. An obsolete form of made, past participle of make.
- Abbreviations of Madam.
Wiktionary
- adj. Insane; crazy, mentally deranged.
- adj. chiefly US; UK dated + regional Angry, annoyed.
- adj. Wildly confused or excited.
- adj. Extremely foolish or unwise; irrational; imprudent.
- adj. colloquial Extremely enthusiastic about; crazy about; infatuated with; overcome with desire for.
- adj. of animals abnormally ferocious or furious; or, rabid, affected with rabies.
- adj. slang, chiefly Northeastern US Intensifier, signifies an abundance or high quality of a thing; very, much or many.
- adv. slang, New England, dialect Intensifier; to a large degree; extremely; exceedingly; very; unbelievably.
- v. To madden, to anger, to frustrate.
GNU Webster's 1913
- p. p. of made.
- adj. Disordered in intellect; crazy; insane.
- adj. Excited beyond self-control or the restraint of reason; inflamed by violent or uncontrollable desire, passion, or appetite
- adj. Proceeding from, or indicating, madness; expressing distraction; prompted by infatuation, fury, or extreme rashness.
- adj. Extravagant; immoderate.
- adj. Furious with rage, terror, or disease; -- said of the lower animals; ; esp., having hydrophobia; rabid.
- adj. colloq. Angry; out of patience; vexed.
- adj. colloq. Having impaired polarity; -- applied to a compass needle.
- v. To make mad or furious; to madden.
- v. Archaic To be mad; to go mad; to rave. See madding.
- n. (Zoöl.) An earthworm.
WordNet 3.0
- adj. very foolish
- adj. roused to anger
- adj. affected with madness or insanity
- adj. marked by uncontrolled excitement or emotion
Etymologies
- Middle English medd, madd, from Old English gemǣd ("enraged"), from gemād ("silly, mad"), from Proto-Germanic *maidaz (compare Old High German gimeit ("foolish, crazy"), Gothic gamaiþs ("crippled")), past participle of *maidijanan (“to cripple, injure”), from Proto-Indo-European *mei (“to change”) (compare Old Irish máel ("bald, dull"), Old Lithuanian ap-maitinti ("to wound"), Sanskrit (méthati, "he hurts, comes to blows")). (Wiktionary)
- Middle English, from Old English gemǣdde, past participle of *gemǣdan, to madden, from gemād, insane. (American Heritage® Dictionary of the English Language, Fourth Edition)
Examples
“Accordingly it fell to my lot to assume the appearance of madness, which made greatly for my purpose, as they consider mad men to be holy, and they therefore allowed me to go much more at large than before, until such time as the hermits might determine whether I were _holy mad_, or raging mad, as shall be shewn hereafter.”
A General History and Collection of Voyages and Travels — Volume 07
“The Whittaker family has their secrets and it all goes back to Whittakerville; where, by some mad twist of fate, Anna and the ´mad Indian´ see a drastic change in personalities.”
“But believe me, Norma, your money makes a very different sort of thing possible now, and you would be mad -- you would be _mad_!”
“IV. iii.27 (490,2) and he, she lov'd, prov'd mad,/And did forsake her] I believe that _mad_ only signifies _wild, frantick, uncertain_.”
“The term mad is not intended to cause offence, but to reflect the generic use of the word, reserving explicit clinical terms for the appropriate context.”
“In donning the Reverends mantle, I have retained the use of the term mad for Bethlems residents.”
“Prolonged exposure to the fumes released when the material was steamed for final shaping had dire effects on the nervous system, hence the expression "mad as a hatter.”
“W&H: I remember that my grandmother used the term mad money.”
“It's been nearly 20 years since the world first heard the term mad cow disease.”
“But then, when people contracted the disease from eating tainted beef, the term mad cow would become a global, household word.”
Lists
These user-created lists contain the word ‘mad’.
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Sweet tooth fairy dominoes
As originally suggested on sweet tooth fairy domino:
Each person adds one word trying to create a single, potentially infinite sweet tooth fairy (please look it up if you are not familiar wit...banana, boat, house, arrest, warrant, peace, sign, post, box, clever, Hans, device and 119 more...
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emordnilap
reviled, loot, no, ta, rat, part, pit, stop, spat, ten, mad, mart and 108 more...
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((Eye)) CBS = I See B.S.
Input limited to 30 seconds, so we needed to find cost-effective ways to become a part of your life. Uninvited houseguest technology: the link technique, thoughts as real estate. The full potential...
joy, dodge, ram, monster, coke, snuggle, gateway, ivory, life, subway, crunch, crest and 151 more...
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Bonkers
List for old and new terms and phrases meaning crazy, nuts, batty, prone to extreme nervousness, etc.
bonkers, crazy, nuts, batty, batchy, bats in the belfry, scatty, crackers, windy, gone crackers, cracked, dingo and 92 more...
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INTERP - speeches can be...
adequate, adroit, blunt, blurred, committed, divisive, exacerbating, fitting, hollow, lengthy, murky, pronounced and 123 more...
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3-letter Scrabble Words
aah, aal, aas, aba, abo, abs, aby, ace, act, add, ado, ads and 995 more...
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Adjectives
sagacious, average, angry, mad, crazy, giant, ugly, pretty, happy, sad, lonely, solitary and 119 more...
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Words Heard Too Often In Songs
Words overused in modern pop music.
Also see ruzuzu's list: Words that should be heard in songs more often.love, heart, dance, dancefloor, down, take, want, night, fight, baby, like, ooooh and 136 more...
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3 Letter Words
A list of English words that are three letters long.
ace, act, ade, ado, add, ads, age, ago, ail, air, aim, all and 397 more...
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Mentally irregular
Words for the mentally irregular
bonkers, unhinged, batshit crazy, cognitive dissonance, apophenia, undone, loony, unsound, deranged, a bit off the beam, daft, stark ravin' mad and 65 more...
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I am : oppressive
Words that are oppressive. Describing anger, violence, aggression (overt and covert), opposition, tension. strong stance and lack of harmony.
Still working on exact definition...angry, enraged, furious, mad, obstreperous, violent, aggressive, truculent, obdurate, obstinate, defiant, hostile and 33 more...
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Bonkers
crackers, barmy, half-baked, mental, unhinged, barking, cuckoo, cracked, nuts, mad, insane, touched and 24 more...
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Emotions
affection, longing, cheerfulness, pride, optimism, relief, success, suprise, irritation, rage, hope, love and 31 more...
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3LW
3 letter words, not the girl band.
boggle and speed scrabble would not be half as fun without them.aah, boa, dot, fun, ick, log, oca, pyx, sos, was, aal, bob and 342 more...
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classic695's Words
delighted, elated, energetic, excited, enthusiastic, elevated, happy, contented, fine, pleased, satisfied, compassionate and 168 more...
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Two years
Okay, I admit it. I made a list of words my daughter knew when she was two years old.
bat, baba, a, abalone, about, acorn, adrienne, after, again, airplane, alison, all and 694 more...
Tweets
Looking for tweets for mad.

lampbane Madrid Barajas International Airport. Oct 25, 2008
penncl23 That dam make me mad. Jan 9, 2007