Unrestrained (adjective)

1. Not confined or limited.
2. Not controlled or regulated.

Origin:

From the latin word 'inrestrictus' meaning 'not confined or limited'.

Examples:

1. The party was unrestrained and wild, with no rules or regulations.
2. The horse was unrestrained and ran freely in the field.
3. His anger was unrestrained and he shouted loudly.
4. The company allowed unrestrained use of its resources.
5. The child was unrestrained and ran through the park without any worries.