erratic
英 [ɪ'rætɪk]
美[ɪ'rætɪk]
	    - adj. 不稳定的;古怪的
 - n. 漂泊无定的人;古怪的人
 
英英释意
- 1. having no fixed course;
 - "an erratic comet"
 - "his life followed a wandering course"
 - "a planetary vagabond"
 
- 2. liable to sudden unpredictable change;
 - "erratic behavior"
 - "fickle weather"
 - "mercurial twists of temperament"
 - "a quicksilver character, cool and willful at one moment, utterly fragile the next"
 
- 3. likely to perform unpredictably;
 - "erratic winds are the bane of a sailor"
 - "a temperamental motor; sometimes it would start and sometimes it wouldn't"
 - "that beautiful but temperamental instrument the flute"- Osbert Lancaster