| unfeeling(adjective, cold, indifferent, unresponsive, insensitive) |
| unperceiving(adjective, dull, careless, indifferent, thoughtless) |
| unplanned(adjective, unqualified, unknowing, unsuspecting, unready) |
| unpremeditated(ignorant, hidden, unconscious, oblivious, subconscious) |
| unready(unqualified, vulnerable, unsuspecting, suddenly, unexpectedly) |
| unschooled(adjective, innocent, unqualified, ignorant, vulnerable) |
| unseeing(adjective, dull, careless, indifferent, thoughtless) |
| untaught(adjective, innocent, unfamiliar, unconscious, unknowing) |
| untutored(adjective, ignorant) |
| unversed |
| wool-gathering |
| abruptly(adverb, suddenly, unexpectedly, unawares) |
| accidentally(adverb, suddenly, unexpectedly, unawares) |
| airheaded(adjective, anxious, distant, distracted, absorbed) |
| apprenticed(adjective, innocent, unfamiliar, unconscious, unknowing) |
| asinine(adjective, silly, foolish, senseless, unnecessary) |
| bemused(adjective, anxious, distant, distracted, absorbed) |
| benighted(adjective, innocent, unfamiliar, unconscious, unknowing) |
| birdbrained(adjective, silly, innocent, unfamiliar, unconscious) |
| blank(naive, ingenuous, unwitting) |