distrustful vs dubious

distrustful

adj
  • Experiencing distrust, showing distrust, wary, sceptical, suspicious, doubtful. 

  • Causing or giving rise to distrust. 

dubious

adj
  • In disbelief; wavering, uncertain, or hesitating in opinion; inclined to doubt; undecided. 

  • Arousing doubt; questionable; open to suspicion. 

  • Generally considered imprecise or wrong, but not totally unplayable. 

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