| slack(adjective, dull, careless, sluggish, dubious) |
| sleepy(adjective, dull, idle, sluggish, inactive) |
| slothful(adjective, dull, careless, indifferent, idle) |
| slow(adjective, dull, careless, indifferent, idle) |
| slow-moving(adjective, dull, careless, indifferent, idle) |
| sluggish(adjective, dull, idle, lazy, inactive) |
| snoozy(adjective, dull, careless, idle, sluggish) |
| supine(adjective, dull, careless, indifferent, idle) |
| tardy(adjective, dull, careless, indifferent, idle) |
| tired(adjective, dull, idle, sluggish, lazy) |
| torpid(adjective, dull, idle, sluggish, inactive) |
| trifling(adjective, dull, careless, indifferent, idle) |
| unconcerned(adjective, dull, idle, sluggish, inactive) |
| unenterprising |
| unindustrious(adjective, dull, careless, indifferent, idle) |
| unpersevering(adjective, dull, careless, indifferent, idle) |
| unready(adjective, dull, careless, indifferent, idle) |
| weary(adjective, dull, careless, indifferent, idle) |
| courtly |
| delicate |