Speed Speed synonyms hurry speed and hurry hasten speed and hasten velocity speed and velocity swiftness speed and swiftness rush speed and rush quickness speed and quickness rapidity speed and rapidity quicken speed and quicken accelerate speed and accelerate race speed and race Full list of synonyms (1618) Speed antonyms slow speed and slow retard speed and retard slowness speed and slowness crawl speed and crawl dawdle speed and dawdle slow down speed and slow down delay speed and delay linger speed and linger decelerate speed and decelerate hinder speed and hinder Full list of antonyms (68) Share this picture Share this image Share this picture Share this image