Keywords: oblivious, vacant, ignorant, clueless, unaware

Sign Definition

As a Noun

1. The condition of not knowing about something, especially when it is known by other people or unexpected. English = unawareness, ignorance.
2. The state of not being aware or conscious of what is happening around you. English = oblivion.

As a Verb or Adjective

1. To not know about something, especially when it is unexpected or when others know about it. English = (be) unaware, (be) ignorant of, (be) oblivious to.