4 adjectives to describe decisiveness

At need, Miss Holland could summon considerable decisiveness to her aid.

the señorita declared with her customary decisiveness.

'I will go in the tlain with you,' says she with slow decisiveness: 'but where you leave me, there I will stay, till I die; and I will patiently wait till my God convert you, and send you back to me.'

"You have heard my story," Gifford pursued with steady decisiveness, "and have, I presume, accepted it.

4 adjectives to describe  decisiveness