The antonyms for the word "most zooming" can be words like slow, stagnant, immobile, sluggish, decelerating, or decelerative. Most zooming refers to the quickest or the fastest, and the antonyms represent the opposite. Therefore, Slow represents the opposite speed to Most zooming, stagnant represents inactive or not moving, immobile refers to being motionless, sluggish represents a state of dullness or inactivity, decelerating represents reducing speed, whereas decelerative is a term used when something is already in the process of slowing down. All these antonyms are indirectly related to the speed and represent words that present a slower or decelerating pace than the word "most zooming.