noun. Lack of ability or means.

noun. The state of being unable, physically, mentally, or morally; want of ability; lack of power, capacity, or means: as, inability to perform a task, or to pay one's debts.

noun. Specifically In theology, want of power to obey the law of God.

noun. The quality or state of being unable; lack of ability; lack of sufficient power, strength, resources, or capacity.

noun. lack of the ability to do something; incapability

noun. lacking the power to perform

noun. lack of ability (especially mental ability) to do something

"I do want to point out that a spokesperson for Ralph Lauren told us today they let her go because of what they called her inability to meet obligations under her contract."

ability  

accessibility  advisability  availability  believability  collectibility  

apathy  awkwardness  discomfort  exhaustion  feebleness  

disability  disability  disablement  disqualification  disqualification