야가무식도in English:a term used to describe a situation where someone is ignorant or lacks knowledge

Examples
with 야가무식도.

• 그는 야가무식도로 인해 많은 기회를 놓쳤다.geuneun yagamushikdoro inhae manheun gihoe-reul nochyeotda.He missed many opportunities due to his ignorance.