lionistic
to exude the confidence of a lion and to feel a fierceness deep within that gives you strength to power through something you might fear or be anxious about
I was feeling anxious about singing in front of a crowd for the first time, but all of the sudden I'm feeling lionistic and my fears have left me.
I'm feeling lionistic today maybe I'll go skydiving!
I'm feeling lionistic today maybe I'll go skydiving!