| slow-paced(adjective, slow, remiss, tardy) |
| stiff(adjective, dull, moderate, low, slow) |
| stuporous(adjective, action, dull, lethargic) |
| thick-witted(adjective, dull, stupid) |
| uninterested(adjective, dull, weak, heavy, still) |
| abeyant(dull, lazy, passive, inert, motionless) |
| boring(adjective, dull, quiet, simple, flat) |
| bovine(adjective, dull) |
| do-nothing(adjective, action, dull, informal, lazy) |
| dozy(adjective, quiet, slow, heavy, tired) |
| draggy(adjective, dull, quiet, flat, low) |
| dumb(adjective, dull, simple, slow, silly) |
| late(adjective, adverb, dull, low, slow) |
| pokey(adjective, dull, slow, inactive, listless) |
| quiescent(adjective, calm, dull, gentle, lazy) |
| sleeping |
| sluggard(adjective, action, dull, slow, still) |
| slumbering(adjective, calm, gentle, inactive, passive) |
| standing(adjective, quiet, still, stationary) |
| stationary(adjective, quiet, still, inert, motionless) |