complaintive vs infelicitous

complaintive

adj
  • Tending to complain, characterized by complaining. 

infelicitous

adj
  • Unhappy or unfortunate. 

  • Inappropriate or awkward; not well said, expressed, or done. 

  • Of a sentence or utterance: not semantically and pragmatically coherent. 

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