느닷없이

neudadeopsi [느다덥씨]

느닷없이 + 나타나다/묻다/화를 내다

suddenly, out of nowhere, without warning

Example

친구가 느닷없이 집에 찾아와서 깜짝 놀랐어요.

My friend showed up at my house out of nowhere, and I was startled.

Word parts

Ends in 없이 'without' — think 'without any warning'.