1
madder, maddest
mentally ill; insane有精神病的; 精神严重失常的; 疯的：he felt as if he were going mad.
他觉得自己简直要发疯了。
1.1
- (of a person, conduct, or an idea) extremely foolish or ill-advised（人、行为、想法）极其愚蠢的; 极不明智的：
Antony's mother told him he was mad to be leaving Dublin.
安东尼的母亲对他说他打算离开都柏林是极不明智的。
1.2
- in a frenzied mental or physical state发疯的, 发狂的：
she pictured loved ones mad with anxiety about her
她想像亲人们为她担心得要疯了
it was a mad dash to get ready.
经过一阵发疯似的忙乱才准备就绪。
1.3
- informal enthusiastic about someone or something〈非正式〉狂热的, 着迷的：
I'm mad about jacket potatoes with lots of butter
我非常爱吃涂着厚厚一层黄油的带皮烤土豆
postpositive, in combination Kenny was always football-mad.肯尼一直对足球非常着迷。
1.4
- informal very angry〈非正式〉非常恼火的; 狂怒的：
he must be pretty mad at her for not being at home when they arrived.
他们到达时她不在家, 他对此一定非常恼火。
1.5
- Brit. informal very exciting〈英, 非正式〉非常令人激动的, 非常令人兴奋的。
1.6
- (of a dog) rabid（狗）患狂犬病的。
madded, madding
with obj. archaic make mad or insane〈古〉使发疯, 使疯狂。
短语
go mad
- informal allow oneself to get carried away by enthusiasm or excitement〈非正式〉纵情欢乐：
let's go mad and splash out.
让我们纵情欢乐, 大把大把地花钱吧。
like mad
- informal with great intensity, energy, or enthusiasm〈非正式〉发疯似的; 狂热地; 拼命地; 猛烈地：
I ran like mad.
我发疯似的奔跑。
(as) mad as a hatter
- informal completely crazy〈非正式〉彻底疯狂的。
- ORIGIN: with reference to Lewis Carroll's character the Mad Hatter in Alice's Adventures in Wonderland (1865), the allusion being to the effects of mercury poisoning from the use of mercurous nitrate in the manufacture of felt hats.
mad keen
- informal extremely enthusiastic〈非正式〉极其狂热的：
some men are mad keen on football.
有些男人对足球极其狂热。
词源
Old English gemǣd(e)d 'maddened', participial form related to gemād 'mad', of Germanic origin.