出人意料

Explanation: Expected: the prior estimate of the situation and results. Guess people expect out of outside 　　Usage: Verb-object type; as predicate, attributive, adverbial; that unexpected things beyond people 　　Source: Qing Cao Xueqin's "Dream of Red Mansions" 57 back: "This thing is a surprise addition." 　　Examples: Beauty and talent is quite, not worthy of geographical co-odd tours, ~, in that the wrong joint Luan Huang. ★ Ming Anonymous "gifts secretary Feng Zhao Reunion" Thesaurus:  do stb.when people are off guard, take sb. unawares, to help a joint cause Wish watch, The enemy is unprepared, Ji lei Less Their ears, sudden; as sudden as lightening; sudden peal of thunder leaves no time for covering ears