甲斐かいなし

noun

worthless; useless; hopeless

Describes a person, effort, or situation as lacking value or being beyond hope. Often used in set phrases like 甲斐なしの人生 or 甲斐なしな奴.

• 彼かれは甲斐かいなしの人じん生せいを送おくった。

  He led a worthless life.

• そんな甲斐かいなしな考かんがえは捨すてろ。

  Throw away such hopeless thoughts.