[hair-uh
m-skair-uhm, har-uhm-skar-uhm] 
| 1. | reckless; rash; irresponsible: He had a harum-scarum youth. |
| 2. | disorganized; uncontrolled. |
| 3. | recklessly; wildly: He ran harum-scarum all over the place. |
| 4. | a reckless person. |
| 5. | reckless or unpredictable behavior or action. |