harum-scarum [hair-uh m-skair-uh m, har-uh m-skar-uh m]
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.
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1, 2. erratic, impulsive, impetuous; giddy, scatterbrained.
Origin: 1665-75; earlier harum-starum rhyming compound based on obsolete hare to harass + stare
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