hadstEnglishMerriam-Webster Dictionary>abortive, bootless, futile, vainempty, hollow, idle, pointless, unavailing, unprofitable, unsuccessfulinoperative, worthlessAntonyms fruitless, ineffective, ineffectual, inefficient>abortive, bootless, futile, vainempty, hollow, idle, pointless, unavailing, unprofitable, unsuccessfulinoperative, worthlessAntonyms fruitless, ineffective, ineffectual, inefficienthadst — MW · Shobdo
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EnglishMerriam-Webster Dictionary