1.
If you describe an army or sports team as ~, you believe that they cannot be defeated.
When Sotomayor is on form he is virtually ~.
= unbeatable
ADJ
invincibility
...symbols of the invincibility of the Roman army.
N-UNCOUNT
2.
If someone has an ~ belief or attitude, it cannot be changed.
He also had an ~ faith in the medicinal virtues of garlic.
ADJ: usu ADJ n