Unaware (2,3,4)
'unaware' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for ignorant that I've seen before include "without a clue" , "Lacking in education" , "Lacking knowledge or skill" , "blissful?" , "Ill-mannered" .)
'unaware' is the definition.
(similar in meaning)
This is all the clue.
(Other definitions for oblivious that I've seen before include "totally in the dark?" , "Forgetful; unaware" , "Heedless" , "In ignorance" , "Ignorant" .)
'unaware' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for in the dark that I've seen before include "after sundown" , "Ill-informed" , "when badgers might appear" , "Without information" , "Told nothing" .)