failing, weakness -- (a flaw or weak point; "he was quick to point out his wife's failings")
helplessness, weakness, impuissance -- (powerlessness revealed by an inability to act; "in spite of their weakness the group remains active")
weakness -- (the property of lacking physical or mental strength; liability to failure under pressure or stress or strain; "his weakness increased as he became older"; "the weakness of the span was overlooked until it collapsed")
weakness -- (the condition of being financially weak; "the weakness of the dollar against the yen")
weakness -- (a penchant for something even though it might not be good for you; "he has a weakness for chocolate")
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