weakness

[1]	feebleness , failing , frailty , fragility , delicacy , delicateness , vulnerability , infirmity , decrepitude
[2]	incapacity , helplessness , impuissance , irresolution , irresoluteness , impotence , powerlessness , puniness
[3]	weak point , foible , failing , fault , shortcoming , flaw , Achilles' heel , defect , imperfection , liability
[4]	soft spot , fondness , affection , liking , preference , bent , leaning , inclination , fancy , penchant , predilection , proneness , proclivity , predisposition , partiality , appreciation , appetite , sweet tooth , taste , eye