fitted vs improper

fitted

adj
  • Incorporating all of the fittings into connected units. 

verb
  • simple past tense of fit ("to tailor, to change size") 

  • simple past tense of fit (other senses) 

improper

adj
  • unsuitable to needs or circumstances; inappropriate; inapt 

  • Not properly named; See, for example, improper fraction 

  • Not in keeping with conventional mores or good manners; indecent or immodest 

  • Not consistent with established facts; incorrect 

  • Of a complex random variable, correlated with its conjugate 

  • Not according to facts; inaccurate or erroneous 

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