| slack(adjective, careless, vague, sloppy, inattentive) |
| slaphappy |
| sloppy(adjective, careless, vague, slack, inattentive) |
| slow |
| soft |
| softheaded |
| space cadet(expression, careless, remote, distracted, heedless) |
| spacey(careless, remote, distracted, heedless, scatterbrained) |
| spellbound(adjective, anxious, distant, distracted, absorbed) |
| spread out(expression, adjective, distracted, absorbed, engaged) |
| surroundings(careless, remote, distracted, heedless, woolgathering) |
| taken up(expression, adjective, distracted, absorbed, engaged) |
| thickheaded |
| unaware(adjective, anxious, distant, distracted, absorbed) |
| unaware of events(expression, idiom, careless, remote, distracted) |
| unconscious(careless, remote, distracted, heedless, scatterbrained) |
| unheeding(careless, remote, distracted, heedless, scatterbrained) |
| unintelligent |
| unmindful(adjective, careless, remote, vague, sloppy) |
| unobservant(careless, remote, distracted, heedless, scatterbrained) |