This is the 3664th most frequent Korean word.
불과했다
"불과했다" means "was merely" or "was nothing more than."
The word '불과했다' emphasizes that his success was only due to luck and nothing beyond that.
그의 성공은 노력의 결과가 아닌 운에 불과했다.
His success was nothing more than a result of luck.
Here, '불과했다' is used to denote that the contract was just a temporary agreement.
그 계약은 잠정적인 약속에 불과했다.
That contract was merely a provisional promise.
In this case, '불과했다' conveys that their differences amounted to just a simple misunderstanding.