adjective🔗ShareWirksamkeitslos, untauglichNot having the desired effect; ineffectual"The bug spray was ineffective; the mosquitoes were still biting us. "Das Insektenspray war wirkungslos; die Mücken stachen uns immer noch.outcomeabilityfunctionqualityChat with AIVocabulary GamePractice Reading
adjective🔗ShareIneffektiv, untauglich, unzureichendLacking in ability; incompetent or inadequate"The new student found the teacher's explanation of the math problem completely ineffective; she still didn't understand it. "Die neue Schülerin fand die Erklärung des Lehrers für das Matheproblem völlig ineffektiv; sie verstand es immer noch nicht.abilityqualitycharacterfunctionChat with AIVocabulary GamePractice Reading