indistinctly vs nebulously

indistinctly

adv
  • In an indistinct manner. 

nebulously

adv
  • Vaguely, without clear purpose or specific intention. 

  • As if viewed through a cloud or haze. 

  • In a manner like that of a cloud or haze. 

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