諦めの悪い
Meanings
1
expression, noun-modifying (irregular)
not knowing when to give up; being a bad loser; unable to let things go
Describes a person who persists stubbornly, refuses to accept defeat, or holds onto things. Often used critically.
Antonyms: あきらめのいい
He has a stubborn personality and kept trying again and again.
People who are bad losers have trouble admitting defeat.