► 名詞試練  [(1)しれん]  [liter]    
meaning:  difficult  rank: 3☆ 
彼は
多くの試練を
乗り越えてきた ⇨ He has been overcoming many adversities  
(☛ Difficulties that test your character and ability)More examples:- 彼は試練を耐え抜いた ⇨ He persevered through the adversity
 - 試練の日々が続いている ⇨ Challenging days are continuing