1) All at sea 2) A sea 3) At a loss 4) At sea 5) At wit`s end 6) Ditsy 7) Dorky 8) Foolish 9) In a fog 10) Inept 11) Lost 12) Stupid 13) Uninformed 1) American young adult novel 2) Completely in the dark 3) Emma updated 4) Exclusively Saxon word 5) Exclusively Anglo word 6) Feature with very short title 7) Feature with short title 8) Feature with single word name 9) Feature with very short name 10) Feature with short epithet 11) Film with very short epithet 
Clueless is slang for unaware; naive; lacking knowledge; stupid.
[adj] - totally uninformed about what is going on
adjective totally uninformed about what is going on; not having even a clue from which to infer what is occurring