This is the 2592nd most frequent Korean word.
불과한
Merely; only; nothing more than.
'불과했다' indicates that his success is reduced to being merely the result of luck, dismissing other factors like effort.
그의 성공은 노력의 결과라기보다는 운에 불과했다.
His success was merely due to luck rather than effort.
'불과하니' minimizes the significance of the issue by stating it is only a simple mistake.
이 문제는 단순한 오류에 불과하니 큰 걱정을 할 필요 없습니다.
This issue is merely a simple mistake, so there's no need to worry much.
'불과했다' is used here to emphasize that the promise holds no real value beyond being an empty assertion.