weakness

nouns

a flaw or weak point
"he was quick to point out his wife's failings"
is derived from
powerlessness revealed by an inability to act
"in spite of their weakness the group remains active"
is derived from
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"
is derived from
is derived from
antonym
is a type of (narrower)
a basic or essential attribute shared by all members of a class
"a study of the physical properties of atomic particles"
the condition of being financially weak
"the weakness of the dollar against the yen"
is derived from
antonym
is a type of (narrower)
an unfortunate state resulting from unfavorable outcomes
a penchant for something even though it might not be good for you
"he has a weakness for chocolate"
is a type of (narrower)
a strong liking
"my own preference is for good literature"; "the Irish have a penchant for blarney"