fruitless
Definition
Having no useful result; unsuccessful or unproductive.
日本語 有益な結果を生まないこと、失敗したこと
Example
"They made a fruitless search for the missing keys under the sofa."
Having no useful result; unsuccessful or unproductive.
日本語 有益な結果を生まないこと、失敗したこと
"They made a fruitless search for the missing keys under the sofa."