Synonyms : ad-lib , extemporaneous , extemporary , extempore , impromptu , off-the-cuff , offhand , offhanded

Example Sentence

• 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