| unconscious(adjective, unconcerned, ignorant, heedless, negligent) |
| undiscerning(unconcerned, unfamiliar, uninformed, unrecognizing, unnoticing) |
| unenlightened(adjective, unconcerned, ignorant, unconscious, heedless) |
| unfamiliar(adjective, unconcerned, ignorant, unconscious, heedless) |
| uninformed(adjective, unconcerned, ignorant, unfamiliar, unconscious) |
| uninstructed(adjective, unconcerned, ignorant, unfamiliar, unconscious) |
| unknowing(adjective, unconcerned, ignorant, unfamiliar, unconscious) |
| unmindful(adjective, unconcerned, ignorant, unconscious, heedless) |
| unnoticing(undiscerning, unrecognizing) |
| unrecognizing(unconcerned, unfamiliar, uninformed, undiscerning, unnoticing) |
| unsane |
| unsettled |
| unsuspecting(adjective, unconcerned, ignorant, unconscious, heedless) |
| unwitting(adjective, unconcerned, ignorant, unfamiliar, unconscious) |
| wandering |
| weener(noun, slang, sick, mad person) |
| weeney(noun, slang, sick, mad person) |
| weenie(noun, slang, sick, mad person) |
| weinie(noun, slang, sick, mad person) |
| wet sock(noun, slang, sick, mad person) |