ad-lib

• 形容即兴的、未经准备的，常用于描述表演、讲话或发言等内容。

Describes something that is improvised or spoken without preparation, often used in performance contexts.

1. Spontaneous or improvisedB2informal

   Said or done without prior planning or preparation; created on the spot.

   即兴的

   • The comedian gave an ad-lib performance that had the audience laughing.
   • Her ad-lib remarks during the interview were surprisingly witty.
   • The actor's ad-lib line became the most memorable part of the movie.

   同义词extemporaneousextemporeimpromptuimprovisedoffhandspontaneousunplannedunrehearsed

   反义词plannedpremeditatedpreparedscripted

2. UnrehearsedB2informal

   Performed or delivered without any rehearsal or written script.

   即兴的

   • The band played an ad-lib version of the song at the concert.
   • His ad-lib speech at the wedding was heartfelt and genuine.
   • The director encouraged ad-lib dialogue to make the scene feel more natural.

   同义词extemporaneousextemporaryimpromptuimprovisedoff-the-cuffspontaneousunrehearsedunscripted

   反义词plannedpreparedscriptedwritten

• 名词，指即兴说出的话、临时插入的台词或即兴表演，事先没有准备。

A noun referring to a remark, line, or performance delivered spontaneously without prior preparation.

1. Spontaneous remarkB2informal

   A comment or line delivered without prior preparation, often in a performance or conversation.

   即兴发言

   • The comedian's ad-lib had the audience roaring with laughter.
   • During the interview, she made a clever ad-lib about the topic.
   • His speech was mostly scripted, but he added a few ad-libs.

   同义词extemporizationimpromptuimprovisation

   反义词preparationrehearsalscript

• 动词，指在没有准备的情况下即兴讲话或表演，尤其用于演讲或演出中。

A verb meaning to improvise or perform spontaneously without preparation, especially in speech or performance.

1. ImproviseB2informal

   To speak or perform without preparation or a script, creating words or actions spontaneously.

   即兴

   • The comedian ad-libbed a hilarious joke when the microphone malfunctioned.
   • During the play, the actor forgot his lines and had to ad-lib.
   • She ad-libbed a speech when the main speaker didn't show up.

   同义词improvisemake up

   反义词planpreparerehearsescript