| thoughtless(adjective, careless, indifferent, apathetic, distracted) |
| unconscious(adjective, careless, indifferent, apathetic, distracted) |
| undiscerning(adjective, careless, indifferent, apathetic, distracted) |
| unheeding(adjective, careless, indifferent, apathetic, distracted) |
| unmindful(adjective, careless, indifferent, apathetic, distracted) |
| unnoticing(adjective, careless, indifferent, apathetic, distracted) |
| unobservant(adjective, careless, indifferent, apathetic, distracted) |
| unobserving(adjective, careless, indifferent, apathetic, distracted) |
| unperceiving(adjective, careless, indifferent, apathetic, distracted) |
| unthinking(adjective, careless, indifferent, apathetic, distracted) |
| unwary |
| vague(adjective, careless, indifferent, apathetic, distracted) |
| absent-minded(adjective, careless, distracted, abstracted, daydreaming) |
| abstracted(adjective, careless, distracted, daydreaming, woolgathering) |
| asleep at switch(expression, idiom, adverb, ignorantly, unwatchful) |
| asleep on the job(adjective, unprepared) |
| by accident(expression, ignorantly, unwatchful) |
| by mistake(expression, ignorantly, unwatchful) |
| by surprise(expression, ignorantly, unwatchful) |
| dozy(adjective, careless, distracted, abstracted, daydreaming) |