Weakness
Part of speech: noun
Definition: The condition of being weak. An inadequate quality; fault A special fondness or desire.
Example sentence: Insincerity is always weakness; sincerity even in error is strength.
Helplessness
Part of speech: noun
Definition: The state of being helpless.A feeling of inadequacy or impotence.
Example sentence: There is no word for feeling nostalgic about the future, but that's what a parent's tears often are, a nostalgia for something that has not yet occurred. They are the pain of hope, the helplessness of hope, and finally, the surrender to hope.