fruitlessKK [ˋfrutləs] /ˈfɹutləs/發音形容詞1徒勞的、白費的、沒有結果的After a fruitless search, they finally called the police.一番徒勞的尋找之後,他們終於報了警。2不結果實的植物The old tree has been fruitless for several seasons now.那棵老樹已經好幾季不結果實了。