1. extemporary的近义词

1. 无准备的：extemporarily 即席地 | extemporary 无准备的 | extempore 即席的

2. 即席的,即兴性的：extemporaneous 无准备的,即席的,临时的 | extemporary 即席的,即兴性的 | temporal 时间的,世俗的

3. 无准备的; 随口说的 (形)：extemporaneous 无准备的, 临时的, 即席的 (形) | extemporary 无准备的; 随口说的 (形) | extempore 即席的; 当场的 (形)

4. 无准备的即兴的：Exuberant 繁茂的丰富的 | Extemporary 无准备的即兴的 | Immigrate 入境

1. with little or no preparation or forethought

    e.g. 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

    Synonym: ad-libextemporaneousextemporeimpromptuoffhandoffhandedoff-the-cuffunrehearsed