| incognizant(adjective, unconcerned, unknown, ignorant, unfamiliar) |
| uninstructed(adjective, unconcerned, unknown, ignorant, unfamiliar) |
| absorbed(unconcerned, unfamiliar, uninformed) |
| abstracted(unconcerned, unfamiliar, uninformed) |
| amnesic(unconcerned, unfamiliar, uninformed, undiscerning, unrecognizing) |
| blind(adjective, unconcerned, ignorant, unconscious, heedless) |
| blundering(unconcerned, unfamiliar, uninformed) |
| careless(ignorant, unconscious, uninformed) |
| caught napping(expression, adjective, unconcerned, ignorant, unconscious) |
| daydreaming(adjective, unconcerned, ignorant, unconscious, heedless) |
| deaf(adjective, unconcerned, ignorant, unfamiliar, unconscious) |
| deaf to(expression, adjective, unconcerned, ignorant, unconscious) |
| disregardful(unconcerned, unfamiliar, uninformed) |
| doped(adjective, unconcerned, ignorant, unconscious, heedless) |
| forgetful(adjective, unconcerned, ignorant, unfamiliar, unconscious) |
| forgetting(unconcerned, unfamiliar, uninformed, unnoticing) |
| gone(unconcerned, unfamiliar, uninformed) |
| heedless(adjective, unconcerned, ignorant, unconscious, negligent) |
| ignorant(adjective, unconcerned, unknown, unconscious, heedless) |
| in a daze(expression, adjective, idiom, unconcerned, ignorant) |