Definition of 重大問題 (じゅうだいもんだい)
じゅうだいもんだい
                        重大問題
じゅうだいもんだい
juudaimondai
noun
•
        
serious (vital) question, a grave issue, a matter of grave concern
Related Kanji
| 重 | heavy, important, esteem, respect, heap up, pile up, nest of boxes, -fold | 
| 大 | large, big | 
| 問 | question, ask, problem | 
| 題 | topic, subject |