frantic
单词辨析：
指精神错乱的，或行为不理智的、失控的。
They realized that the captured spy had gone mad.
他们意识到那名被俘的间谍已经疯了。
The cartoon figure was depicted as a mad scientist.
这个卡通人物被刻画成了一名疯子科学家。
You must be mad to say that!
你那么说简直是疯了！
People all went mad with joy.
人们全都欣喜若狂。
指精神失常或不理智的，常可与 mad 换用。
He feels so alone that he sometimes wonders if he's going crazy/mad.
他觉得非常孤单，有时候他怀疑自己是否快要发疯了。
A crazy/mad old woman lived in that room.
一个疯老太婆住在那个房间里。
表示患精神病时，mad 与 crazy 均含冒犯之意，通常用 mentally ill 来代替。
指因极度焦虑或恐惧而情绪失控的。
His mother hasn't been able to reach him on his cellphone and is getting frantic.
他母亲一直打不通他的电话，急得快要发疯了。
She was frantic with worry.
她担心得要命。
指因极端不安、担心、激动等而行为或情绪失控的。
hysterical screams
歇斯底里的尖叫
She became hysterical and began crying.
她变得歇斯底里，开始大哭起来。
He became almost hysterical when he heard the news.
他听到这个消息时几乎要发疯了。
相关例句：
Do not drive him frantic by worrying him with endless question.
不要以无穷尽的问题困扰他而使他狂乱。
A bird had been locked in and was by now quite frantic.
一只鸟被关进了笼子，到现在它都十分狂躁。
From the frantic worship of Sex has come the pandemic of AIDS.
对性的狂热崇拜导致了艾滋病的大流行。
But her frantic parents had already contacted the police, who called the driver using her mobile phone records.
但是她惊慌的父母已经联系了警察，用她手机电话记录联系了司机。
In the midst of my pain of heart and frantic effort of principle, I abhorred myself.
在我内心的痛苦中，在道义的疯狂努力中，我憎恶我自己。
At first there was a burst of static, then immediately a succession of piercing, frantic, chilling screams.
起初是一阵静电干扰声，紧接着是一连串刺耳，慌乱，令人毛骨悚然的尖叫声。