confident

https://tts.langeek.co/read?text=Y29uZmlkZW50&hash=932ce1afdb9611b440ff30b77e044faaacf37fd9&lang=en&cache-only=0&driver=googletts

Here you will find the vocabulary from Unit 10 - Lesson 4 in the Summit 1B coursebook, such as "noisily", "confident", "safely", etc.