perfect end; crowning achievement; triumphant finish
Used when someone completes a long effort, career, or project in a brilliant or satisfying way. Often appears in the set phrase 有終の美を飾る (to cap off with a glorious finish).
He won his retirement match and capped off his career with a glorious finish.
長年の研究がついに実を結び、有終の美を迎えた。
His years of research finally bore fruit, reaching a perfect conclusion.