Ex-temporizing refers to the act of improvising or speaking without preparation. Its antonyms are rehearsed, planned, and premeditated. When something is rehearsed, it means that it has been prepared in advance, and therefore, the speaker has had time to think about how to deliver the message. Conversely, ex-temporizing is characterized by a lack of preparation and may result in an ineffective communication style. When something is planned or premeditated, the speaker has taken time to think about their message and how best to articulate it, resulting in a well-delivered message. Having these antonyms at the back of your mind will help you decide whether to ex-temporize, rehearse, plan or premeditate your speech or message delivery.