Slow

lazy leisurely gradual easy moderate deliberate sluggish inactive idle sleepy dawdling laggard tardy creeping lagging slack heavy drowsy listless phlegmatic lethargic dilatory plodding reluctant negligent procrastinating loitering measured snail-like indolent quiet torpid apathetic disinclined dreamy ponderous delaying remiss postponing leaden crawling inert tortoise-like lackadaisical slothful slow-moving imperceptible stagnant passive supine

late delayed tardy overdue sluggish dilatory belated inactive hindered impeded long-delayed backward behindhand protracted lingering gradual long-drawn-out dull slack sleepy unpunctual down reduced moderate draggy low prolonged stiff unproductive tame stagnant dead conservative off unprogressive time-consuming uneventful

stupid dumb dense dull thick slow on the uptake dim simple unresponsive limited dimwitted backward obtuse moronic dunce imbecile