levelheaded Antonyms

as nutty as a fruitcake psychotic psycho out of control crazy as a bedbug away with the fairies of unsound mind psychoneurotic unstrung nuts wild whimsical upset not right in the head nutty as a fruitcake 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 shakable pixelated not playing with a full deck unsound unreasonable illogical idiotic hysterical frantic foolish deranged demented crazy crazed capricious brainsick anxious insane irrational stupid rabid psychiatric perturbable nonsensical nervous mental