decent vs improper

decent

adj
  • Conforming to perceived standards of good taste. 

  • Sufficiently clothed or dressed to be seen. 

  • Having a suitable conformity to basic moral standards; showing integrity, fairness, or other characteristics associated with moral uprightness. 

  • Significant; substantial. 

  • Fair; good enough; okay. 

improper

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

  • unsuitable to needs or circumstances; inappropriate; inapt 

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

  • 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 decent and improper occurred in a corpus of books? (source: Google Ngram Viewer )