Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
harum-scarum is a noun, adjective and adverb meaning "a reckless impetuous irresponsible person". It carries 3 recorded senses.
a reckless impetuous irresponsible person
cheerfully irresponsible
“carefree with his money”
“freewheeling urban youths”
“had a harum-scarum youth”
in a wild or reckless manner
“dashing harum-scarum all over the place”
“running pell-mell up the stairs”
Definitions, synonyms and semantic relations for harum-scarum come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.