Noun
1. a flaw or weak point;
"he was quick to point out his wife's failings"2. powerlessness revealed by an inability to act;
"in spite of their weakness the group remains highly active"3. 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"4. the condition of being financially weak;
"the weakness of the dollar against the yen"5. a penchant for something even though it might not be good for you;
"he has a weakness for chocolate"