根こん気き負まけ

noun, noun or participle which takes 'suru'

being outpersevered; losing a battle of endurance

Describes a situation where one's patience or persistence is exhausted by someone else's greater tenacity, often in a competitive or argumentative context.

• 彼かれのしつこさに根こん気き負まけして、つい承しょう諾だくしてしまった。

  I was outpersevered by his persistence and ended up agreeing.

• 長ちょう時じ間かんの交