also: あきらめのよい
expression, i-adjective (yoi/ii class)
knowing when to give up; good at letting things go; being a good loser
Describes a person who gracefully accepts failure or knows when to stop pursuing something. Often used in contrast with 諦めの悪い (stubborn, unable to let go).
Antonyms: 諦めの悪い
彼は諦めのいい性格だから、失敗してもすぐに気持ちを切り替えられる。
He has a personality that knows when to give up, so even when he fails he can quickly change his mindset.
あきらめのいい
People who are good at letting things go don't get into pointless arguments.
From the nominalized form of 諦める (to give up) + の + いい (good). The expression literally means 'good at giving up' and is a set phrase.