根負け

Meanings

1. Noun, Suru verb, Intransitive

   being beaten by one's opponent's persistence; being outlasted; running out of patience; giving in; succumbing (to)

• ホントしつこいなぁ、しのぶさん。なんか根負こんまけしそう。

  Shinobu is really persistent. It seems that I am beaten.