blah vs pedestrian

blah

adj
  • Dull; uninteresting; insipid. 

  • Low in spirit or health; down. 

intj
  • An expression of mild frustration. 

  • Representing the sound of vomiting. 

  • Imitative of idle, meaningless talk; used sometimes in a slightly derogatory manner to mock or downplay another's words, or to show disinterest in a diatribe, rant, instructions, unsolicited advice, parenting, etc. Also used when recalling and retelling another's words, as a substitute for the portions of the speech deemed irrelevant. 

verb
  • To utter idle, meaningless talk. 

noun
  • (in plural, the blahs) A general or ambiguous feeling of discomfort, dissatisfaction, uneasiness, boredom, mild depression, etc. 

  • Nonsense; drivel; idle, meaningless talk. 

pedestrian

adj
  • Ordinary, dull; everyday; unexceptional. 

  • Of or intended for those who are walking. 

  • Pertaining to ordinary, everyday movements incorporated in postmodern dance. 

noun
  • A walker; one who walks or goes on foot, especially as opposed to one who uses a vehicle. 

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