Weakness
Part of speech: noun
Definition: The condition of being weak. An inadequate quality; fault A special fondness or desire.
Example sentence: Weakness of attitude becomes weakness of character.
Failing
Part of speech: verb
Definition: To be unsuccessful.
Part of speech: noun
Definition: Weakness; defect
Part of speech: preposition
Definition: if the preferred or prior option is not possible
Example sentence: Truth is mysterious, elusive, always to be conquered. Liberty is dangerous, as hard to live with as it is elating. We must march toward these two goals, painfully but resolutely, certain in advance of our failings on so long a road.