unrestrained

/ˌʌnrɪˈstreɪnd/
adjective
  1. Not held back or controlled; free and open.
    • The children's unrestrained laughter filled the playground.
    • The artist's unrestrained creativity led to a bold and original painting.
    • His unrestrained anger caused him to say things he later regretted.
Antonyms
What does "unrestrained" mean? | whatsthatwordmean | whatsthatwordmean