selbstsicher in English:

She’s a self-confident and sociable child.

Being self-confident is a good thing.

You need to be more self-confident to succeed.

Would you like to be more attractive and self-confident? / They were self-confident and determined.

Jack is self-confident and intelligent.

As you are surely aware, Russia is a self-confident state and the Russians are a self-confident nation.

He was always popular and self-confident.

Life is easier for people who are self-confident.

He is self-confident and with an outgoing, easy-going personality

a self-confident child/manner

He’s become more self-confident since he won promotion.

Vincent believes in himself. He has no doubts about his abilities and knowledge. He is self-confident.

How can parents teach their children to be self-confident?

We need to employ someone who is self-confident

feeling sure about yourself and your abilities You need to be self-confident to be a manager.