psychotic lunatic mad nuts insane maniacal maniac mental gaga paranoid crazed psycho paranoidal deranged looney whacky disturbed demented Unusual irrational unhinged loony whacko nutty unbalanced cuckoo wacko screwy eccentric certifiable wacky ballistic batty bonkers cracked bedlam daft unreasonable round the bend haywire kooky silly odd barmy depr