| inept(obtuse, unperceptive, unobservant) |
| insensitive(adjective, dull, sharp, rude, indifferent) |
| irrational(adjective, careless, foolish, stupid, vague) |
| laggard(adjective, dull, careless, idle, sluggish) |
| lethargic(adjective, dull, careless, indifferent, idle) |
| madcap(wild, thoughtless, vague, unkind, negligent) |
| mediocre |
| neglect |
| off |
| out to lunch(expression, adjective, idiom, careless, attention) |
| pococurante |
| poor |
| procrastinating(dull, careless, idle, sluggish, dubious) |
| relaxed(adjective, careless, indifferent, apathetic, unsympathetic) |
| remote(adjective, careless, vague, distracted, heedless) |
| routine(adjective, unthinking, superficial, dutiful, sketchy) |
| scatterbrained(adjective, careless, attention, remote, vague) |
| scatty(vague, distracted, scatterbrained, forgetful, absent-minded) |
| shiftless(adjective, dull, careless, idle, dubious) |
| shoddy(adjective, neglectful) |