insane
	英 [ɪn'seɪn]
美[ɪn'sen]
	    
    英英释意
	
	- 1. afflicted with or characteristic of mental derangement;
 - "was declared insane"
 - "insane laughter"
 
- 2. very foolish;
 - "harebrained ideas"
 - "took insane risks behind the wheel"
 - "a completely mad scheme to build a bridge between two mountains"