temerarious
/ˌtɛməˈrɛriəs/
adjective
- Reckless or daring in a way that shows a lack of caution or good judgment.
- Her temerarious decision to quit her job without a backup plan worried her family.
- The knight's temerarious charge against the enemy army surprised everyone.
- The temerarious explorer ventured into the cave without any safety equipment.