Unhesitating (adjective)

Acting or done without hesitation or delay.

Origin:

From the prefix un- meaning not and the word hesitating.

Examples:

1. She made an unhesitating decision to help the stranded motorist.
2. He gave an unhesitating acceptance of the job offer.
3. The unhesitating actions of the first responder saved the life.
4. She made an unhesitating move to grab the ball.
5. He made an unhesitating choice to take the opportunity.