This is the 14743rd most frequent Korean word.
밀행성
"밀행성" means "secretive" or "clandestine nature."
밀행성 here describes behavior that is secretive or stealthy, often with a purpose of not being noticed.
밀행성 행동은 타인을 속일 때 쓰일 수 있습니다.
Secretive behavior can be used to deceive others.
밀행성 in this context describes a plan that is carried out discreetly and without external awareness.
그는 그의 밀행성 계획을 아무에게도 알리지 않았습니다.
He did not reveal his secretive plan to anyone.
밀행성 characterizes operations that are conducted covertly or unnoticed, requiring careful attention to detail.