quickness Antonyms

apathy procrastination silliness slowness stupidity thickness vacuousness sluggishness denseness deceleration cumbersomeness slowdown leisureliness blockheadedness boneheadedness brainlessness dim-wittedness dithering obtuseness laziness calmness clumsiness craziness dallying dawdling delay deliberateness deliberation density detainment dilatoriness dimness dislike dullness dumbness ennui lateness dopiness