moonstruck

around the bend batty bizarre brainsick cracked crazed crazy crazy as a loon cuckoo daft demented deranged disordered distraught dotty fatuous frenzied idiotic impractical irrational irresponsible loony lunatic mad mad as a hatter maniac maniacal not all there nuts nutty nutty as a fruitcake of unsound mind off off one's rocker out of one's mind paranoid preposterous psychopathic psychotic rabid raging raving screwy senseless sick in the head stark raving mad touched unbalanced unhinged unsettled unsound wild wrong