Oblivious, Unaware, Unmindful, Insensible, Ignorant, Unobservant, Insensitive, Unaffected, Indifferent
English Meaning :
(Adjective : Totally uninformed about what is going on; not having even a clue from which to infer what is occurring)
Example : If you have a child who is clueless about fashion, help him to dress the part and look as much like the other kids as possible.
Word Example from TV Shows :
(The Big Bang Theory Season 11, Episode 14)
In darkness :