Expeditive is a word that is rarely used, but it means to be efficient and quick. Some antonyms for expeditive could be slow, sluggish, and procrastinating. When one is not expeditive, they tend to take longer to complete tasks and can be seen as lazy or inefficient. Other antonyms could be unproductive, lazy, and stagnant. These words represent a lack of urgency and productivity, and they are the opposite of expeditive. It is important to be expeditive in some situations, while in others, it is best to slow down and take a more methodical approach. It all depends on the circumstances and what needs to be accomplished.