madder; maddest
1
: arising from, indicative of, or marked by mental disorder
—not used technically
2
a
: 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 combinationKevin D. Williamsontrivia known to only the most movie-mad film buffs
a power-mad villain
money-mad
6
: marked by wild gaiety and merriment : hilarious
… of their childhood, of the mad pranks they played …—Winston Churchill
Winston Churchill7
: intensely excited : frantic
… driving him mad with jealousy.—Edmund Wilson
Edmund Wilson8
: 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
Joan Morgan
see also:
Examples of mad in a Sentence
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.
Recent Examples on the Web
The next morning, my feet began to itch like mad.
—Literary Hub, 8 June 2026
None of that would've been possible without the vision that Clay Travis laid out to me early in 2020 as the world was about to go mad.
—Joe Kinsey Outkick, FOXNews.com, 6 June 2026
In the mad race to be the premier AI lab in the world, the company took a big step this week towards pipping bitter rival OpenAI to a public market listing.
—Kai Nicol-Schwarz, CNBC, 5 June 2026
Like, vaguely mad at the mayor; don’t know who anybody is.
—Charlie Warzel, The Atlantic, 5 June 2026
See All Example Sentences for mad
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Literary Hub, 8 June 2026
None of that would've been possible without the vision that Clay Travis laid out to me early in 2020 as the world was about to go mad.
—Joe Kinsey Outkick, FOXNews.com, 6 June 2026
In the mad race to be the premier AI lab in the world, the company took a big step this week towards pipping bitter rival OpenAI to a public market listing.
—Kai Nicol-Schwarz, CNBC, 5 June 2026
Like, vaguely mad at the mayor; don’t know who anybody is.
—Charlie Warzel, The Atlantic, 5 June 2026
See All Example Sentences for mad
Cite this Entry
“Mad.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mad. Accessed 9 Jun. 2026.
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