mad
adjective
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
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
nounmad
adverbDefinition of mad (Entry 4 of 5)
MAD
abbreviationDefinition of MAD (Entry 5 of 5)
mutual assured destruction; mutually assured destruction
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