improtected vs thoughtless

improtected

adj
  • Synonym of unprotected 

thoughtless

adj
  • Inconsiderate, inattentive. 

  • Lacking thought or consideration. 

  • Marked by or showing lack of due thought or care; careless. 

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