Answer: stupidest

AnswerCrossword Clue
STUPIDESTLeast likely Mensa candidate
STUPIDESTMost moronic
STUPIDESTMaximally dense
STUPIDESTSuperlatively dense
stupidestUsed to express exasperation or boredom
stupidestLacking intelligence or common sense
stupidestDazed and unable to think clearly
stupidestSTUPID, mentally slow