not at all vs nowhere near

not at all

adv
  • Not in the least. 

intj
  • Used similarly to you're welcome, as a conventional reply to an expression of gratitude. 

  • Don't worry about it (response to worry or an apology) 

nowhere near

adv
  • Not by a large margin, not nearly, not at all. 

How often have the words not at all and nowhere near occurred in a corpus of books? (source: Google Ngram Viewer )