Definition of 反面教師 (はんめんきょうし)
はんめんきょうし
                        反面教師
はんめんきょうし
hanmenkyoushi
Common word
noun
•
        
bad example from which one can learn, good example of what not to do (esp. how not to behave), negative example(yojijukugo)
Related Kanji
| 反 | anti- | 
| 面 | mask, face, features, surface | 
| 教 | teach, faith, doctrine | 
| 師 | expert, teacher, master, model, exemplar, army (incl. counter), war |