She is so dense. Totally clueless.I have never seen anyone so totally clueless. What a dunce.
clueless
adjective unaware, especially of fashion, music and other social trends UK, 1943
clueless
Oblivious and possibly naive. Does she really not realize that the guy she has a crush on is gay? Is she that clueless?Wow, I had no idea she was mad at me—I must be clueless.
clueless
mod. unaware. I have never seen anyone so totally clueless. What a dunce!
totally clueless
mod. ignorant (of something). (see also cluelessness.) Everybody was totally clueless as to what to do.