carefully vs helter-skelter

carefully

adv

  • With care; attentively, circumspectly. 

helter-skelter

noun

  • A helical fairground slide. 

  • Confusion or turmoil. 

adj

  • Carelessly hurried and confused. 

adv

  • In confused, disorderly haste. 

How often have the words carefully and helter-skelter occurred in a corpus of books? (source: Google Ngram Viewer )