同義詞
1. a person who is mentally ill (not in technical use)
- maniac
- , madman
- , madwoman
- , psychopath
- , psychotic
- , loony
- , loon
- , nut
- , nutter
- , nutcase
- , nutjob
- , cuckoo
- , head case
- , headbanger
- , screwball
- , psycho
- , radge
- , wing nut
2. an extremely foolish or eccentric person