끝내 + negative: 끝내 오지 않았어요
in the end, finally; (with a negative) never, after all
Example
그는 끝내 아무 말도 하지 않았어요.
In the end, he didn't say a single word.
Word parts
From 끝 'end' — 'right up to the end'.
Good to know
Pronounced [끈내] — nasalization; often used with negatives for something that never happened despite waiting.
Related words