Unabashed (adjective)

Not ashamed or embarrassed; bold, without shame.

Origin:

Mid 17th century: from un- (expressing negation) + abash + -ed.

Examples:

1. He was unabashed in his pursuit of fame.
2. She was unabashed by her success.
3. He was unabashed by the criticism.
4. She was unabashed in her opinions.
5. The singer was unabashed in his performance.