Meaning & Definition of Impromptu in English

1. An extemporaneous speech or remark

• "A witty impromptu must not sound premeditated"

2. A short musical passage that seems to have been made spontaneously without advance preparation

1. 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"

1. Without advance preparation

• "He spoke ad lib"