单词：ad-lib 

名词

• 
  [1.n.ad-lib] (同义词:[ad-lib(n.即兴表演 adj. 即兴的, 临时穿插的 v. 在演奏时自由发挥 )]  )
• 
  注释列句：remark made spontaneously without prior preparation; "his ad-libs got him in trouble with the politicians"
• 上位词 -> [remark( n. 备注, 评论, 注意, 注释 vt. 评论, 注意, 谈及 vi. 谈论 )]  [statement( n. 声明, 陈述, 综述 )]  [message( n. 消息, 通讯, 讯息, 音讯, 差使, 广告词, 预言, 教训 vt. 通知 vi. 带信息 )]  [communication( n. 传达, 信息, 交通, 通讯 )]  [abstraction( n. 提取 )]  [entity( n. 实体 )] 
• 派生词 -> [ad-lib(n.即兴表演 adj. 即兴的, 临时穿插的 v. 在演奏时自由发挥 )] 
  

动词

• 
  [1.v.ad-lib] (同义词:[improvise( v. 临时准备 )]  [improvize]  [ad-lib(n.即兴表演 adj. 即兴的, 临时穿插的 v. 在演奏时自由发挥 )]  [extemporize( v. 即席演说, 即兴演奏, 当场作成 )]  [extemporise( vi. & vt.<主英>=extemporize )]  )
• 
  注释列句：perform without preparation; "he extemporized a speech at the wedding"
• 上位词 -> [perform( vt. 履行, 执行, 表演, 演出 v. 完成任务 )] 
• 派生词 -> [ad-lib(n.即兴表演 adj. 即兴的, 临时穿插的 v. 在演奏时自由发挥 )] 
  

形容词

• 
  [1.a.ad-lib] (同义词:[ad-lib(n.即兴表演 adj. 即兴的, 临时穿插的 v. 在演奏时自由发挥 )]  [extemporaneous( adj. 无准备的, 即席的, 不用讲稿的, 善于即席讲话的, 临时的 )]  [extemporary( adj. 无准备的, 随口说的 )]  [extempore( adj. 即席的, 当场的 adv. 即席, 当场 n. 即席之作 )]  [impromptu( n. 即席演出, 即兴曲 adj. 即席的 adv. 即席地, 未经准备地 )]  [offhand( adj. 即时的, 无准备的, 唐突的 adv. 即时地, 随便地 )]  [offhanded( adj. 立即的, 即席的 )]  [off-the-cuff( adj. 未预备的, 即席的 )]  [unrehearsed]  )
• 
  注释列句：with little or no preparation or forethought; "his ad-lib comments showed poor judgment"; "an extemporaneous piano recital"; "an extemporary lecture"; "an extempore skit"; "an impromptu speech"; "offhand excuses"; "trying to sound offhanded and reassuring"; "an off-the-cuff toast"; "a few unrehearsed comments"
• 近义词 -> [unprepared( adj. 无准备的, 即席的, 尚未准备好的 )] 
  
• 
  [2.a.ad-lib] (同义词:[ad-lib(n.即兴表演 adj. 即兴的, 临时穿插的 v. 在演奏时自由发挥 )]  [spontaneous( adj. 自发的, 自然产生的 )]  [unwritten( adj. 未成文的, 口头的, 没有记录的, 不成文的 )]  )
• 
  注释列句：said or done without having been planned or written in advance; "he made a few ad-lib remarks"
• 近义词 -> [unscripted( adj. 不用稿子的, 不用剧本的 )]