불편이 · 불편을
inconvenience, discomfort
Example
공사 때문에 불편을 드려서 죄송합니다.
We apologize for the inconvenience caused by the construction.
Word parts
불 not+편 convenient
Literally 'not convenient.'
Good to know
불편을 드려서 죄송합니다 is the standard formal apology for an inconvenience.