Unsupervised (adjective)

Not monitored or overseen by a supervisor or authority.

Origin:

From un- (not) + supervised (monitored or overseen by a supervisor).

Examples:

1. The children were allowed to play unsupervised in the park.
2. The laboratory experiment was unsupervised, which led to a dangerous accident.
3. He was unsupervised and made many mistakes.
4. The employees were unsupervised and acted inappropriately.
5. The unsupervised dog ran away and caused an accident.