Here are examples of the word/phrase "intrepid" used in a sentence and paraphrased in a sentence...
It was intrepid of her to walk around the streets late at night by herself.
It was brave of her to walk around the streets late at night by herself.
The sight of ghosts did not phase him because he was intrepid.
The sight of ghosts did not phase him because he was fearless.
Other Examples...