headlong vs knowing

headlong

adj
  • Reckless, impetuous. 

  • Rushing forward without restraint. 

  • Precipitous. 

  • Plunging downwards head foremost. 

verb
  • To precipitate. 

adv
  • With an unrestrained forward motion. 

  • Rashly; precipitately; without deliberation; in haste, hastily. 

  • With the head first or down. 

knowing

adj
  • Deliberate, wilful. 

  • The ability to know something without being taught. 

  • Suggestive of private knowledge or understanding. 

  • Possessing knowledge or understanding; knowledgeable, intelligent. 

  • Shrewd or showing clever awareness; discerning. 

  • Demonstrating knowledge of what is in fashion; stylish, chic. 

noun
  • The act or condition of having knowledge. 

prep
  • Given my knowledge about someone or something. 

How often have the words headlong and knowing occurred in a corpus of books? (source: Google Ngram Viewer )