strained vs unmannered

strained

adj
  • Forced through a strainer. 

  • Under tension; tense. 

  • Not natural or spontaneous but done with effort 

unmannered

adj
  • Having poor manners or social skills; ill-mannered; rude. 

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