levelheaded Antonyms

as nutty as a fruitcake psycho out of control crazy as a bedbug away with the fairies of unsound mind unstrung nuts bats wild whimsical upset unsound psychotic not right in the head crazy as a loon as crazy as a loon mad as a bag of hammers mad as a badger lift doesn't go all the way to the top as mad as a march hare as mad as a bag of hammers as crazy as a bedbug out of one's mind pixelated not playing with a full deck nutty as a fruitcake unreasonable unpoised illogical idiotic hysterical frantic foolish deranged demented crazy crazed capricious brainsick anxious insane irrational stupid rabid psychiatric perturbable nonsensical nervous mental