What's the difference between undefeatability and undefeatable?

Undefeatability

Definition:

Example Sentences:

• (1) As a youth he was described as "undefeatable", and so he has proved.
• (2) And not only will I name the enemy, I will do whatever it takes to defend America from these haters of mankind.” But in a nod to his more libertarian roots, he advocated a foreign policy that “encourages stability, not chaos” and added: “I see an America strong enough to deter foreign aggression, yet wise enough to avoid unnecessary intervention.” Paul told the crowd of enthusiastic supporters that he envisioned an American national defence that is “unparalleled, undefeatable and unencumbered by overseas nation-building”.

Undefeatable

Definition:

Example Sentences:

• (1) As a youth he was described as "undefeatable", and so he has proved.
• (2) And not only will I name the enemy, I will do whatever it takes to defend America from these haters of mankind.” But in a nod to his more libertarian roots, he advocated a foreign policy that “encourages stability, not chaos” and added: “I see an America strong enough to deter foreign aggression, yet wise enough to avoid unnecessary intervention.” Paul told the crowd of enthusiastic supporters that he envisioned an American national defence that is “unparalleled, undefeatable and unencumbered by overseas nation-building”.